Home / 125,114.28-172,660.50-71,398.23

Finding the Fourth Proportional to 125,114.28, 172,660.50 and 71,398.23

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Solution

The fourth proportional to 125,114.28, 172,660.50 and 71,398.23 is: 98,531.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,114.28 : 172,660.50 = 71,398.23 : x
  2. Step 2: Convert to fraction form
    125,114.28/172,660.50 = 71,398.23/x
  3. Step 3: Cross multiply
    125,114.28x = 172,660.50 × 71,398.23
  4. Step 4: Simplify right side
    125,114.28x = 12,327,654,090.92
  5. Step 5: Solve for x
    x = 12,327,654,090.92/125,114.28
  6. Step 6: Final answer
    x = 98,531.15

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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.