Home / 127,827.80-191,741.70-115,386.20

Finding the Fourth Proportional to 127,827.80, 191,741.70 and 115,386.20

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Solution

The fourth proportional to 127,827.80, 191,741.70 and 115,386.20 is: 173,079.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,827.80 : 191,741.70 = 115,386.20 : x
  2. Step 2: Convert to fraction form
    127,827.80/191,741.70 = 115,386.20/x
  3. Step 3: Cross multiply
    127,827.80x = 191,741.70 × 115,386.20
  4. Step 4: Simplify right side
    127,827.80x = 22,124,346,144.54
  5. Step 5: Solve for x
    x = 22,124,346,144.54/127,827.80
  6. Step 6: Final answer
    x = 173,079.30

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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.