Home / 125,227.20-172,820.16-68,640.96

Finding the Fourth Proportional to 125,227.20, 172,820.16 and 68,640.96

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Solution

The fourth proportional to 125,227.20, 172,820.16 and 68,640.96 is: 94,728.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,227.20 : 172,820.16 = 68,640.96 : x
  2. Step 2: Convert to fraction form
    125,227.20/172,820.16 = 68,640.96/x
  3. Step 3: Cross multiply
    125,227.20x = 172,820.16 × 68,640.96
  4. Step 4: Simplify right side
    125,227.20x = 11,862,541,689.75
  5. Step 5: Solve for x
    x = 11,862,541,689.75/125,227.20
  6. Step 6: Final answer
    x = 94,728.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.