Home / 127,943.10-191,914.65-115,695.90

Finding the Fourth Proportional to 127,943.10, 191,914.65 and 115,695.90

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Solution

The fourth proportional to 127,943.10, 191,914.65 and 115,695.90 is: 173,543.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,943.10 : 191,914.65 = 115,695.90 : x
  2. Step 2: Convert to fraction form
    127,943.10/191,914.65 = 115,695.90/x
  3. Step 3: Cross multiply
    127,943.10x = 191,914.65 × 115,695.90
  4. Step 4: Simplify right side
    127,943.10x = 22,203,738,154.94
  5. Step 5: Solve for x
    x = 22,203,738,154.94/127,943.10
  6. Step 6: Final answer
    x = 173,543.85

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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.