Home / 124,772.75-172,186.17-71,057.78

Finding the Fourth Proportional to 124,772.75, 172,186.17 and 71,057.78

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Solution

The fourth proportional to 124,772.75, 172,186.17 and 71,057.78 is: 98,059.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,772.75 : 172,186.17 = 71,057.78 : x
  2. Step 2: Convert to fraction form
    124,772.75/172,186.17 = 71,057.78/x
  3. Step 3: Cross multiply
    124,772.75x = 172,186.17 × 71,057.78
  4. Step 4: Simplify right side
    124,772.75x = 12,235,166,986.90
  5. Step 5: Solve for x
    x = 12,235,166,986.90/124,772.75
  6. Step 6: Final answer
    x = 98,059.61

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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.