Home / 125,088.30-172,614.38-71,378.42

Finding the Fourth Proportional to 125,088.30, 172,614.38 and 71,378.42

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Solution

The fourth proportional to 125,088.30, 172,614.38 and 71,378.42 is: 98,497.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,088.30 : 172,614.38 = 71,378.42 : x
  2. Step 2: Convert to fraction form
    125,088.30/172,614.38 = 71,378.42/x
  3. Step 3: Cross multiply
    125,088.30x = 172,614.38 × 71,378.42
  4. Step 4: Simplify right side
    125,088.30x = 12,320,940,493.72
  5. Step 5: Solve for x
    x = 12,320,940,493.72/125,088.30
  6. Step 6: Final answer
    x = 98,497.95

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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.