Home / 125,728.86-173,463.34-71,275.20

Finding the Fourth Proportional to 125,728.86, 173,463.34 and 71,275.20

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Solution

The fourth proportional to 125,728.86, 173,463.34 and 71,275.20 is: 98,335.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,728.86 : 173,463.34 = 71,275.20 : x
  2. Step 2: Convert to fraction form
    125,728.86/173,463.34 = 71,275.20/x
  3. Step 3: Cross multiply
    125,728.86x = 173,463.34 × 71,275.20
  4. Step 4: Simplify right side
    125,728.86x = 12,363,634,251.17
  5. Step 5: Solve for x
    x = 12,363,634,251.17/125,728.86
  6. Step 6: Final answer
    x = 98,335.69

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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.