Home / 127,936.10-191,904.15-115,688.90

Finding the Fourth Proportional to 127,936.10, 191,904.15 and 115,688.90

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Solution

The fourth proportional to 127,936.10, 191,904.15 and 115,688.90 is: 173,533.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,936.10 : 191,904.15 = 115,688.90 : x
  2. Step 2: Convert to fraction form
    127,936.10/191,904.15 = 115,688.90/x
  3. Step 3: Cross multiply
    127,936.10x = 191,904.15 × 115,688.90
  4. Step 4: Simplify right side
    127,936.10x = 22,201,180,018.94
  5. Step 5: Solve for x
    x = 22,201,180,018.94/127,936.10
  6. Step 6: Final answer
    x = 173,533.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.