Home / 125,540.17-173,275.59-71,856.31

Finding the Fourth Proportional to 125,540.17, 173,275.59 and 71,856.31

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Solution

The fourth proportional to 125,540.17, 173,275.59 and 71,856.31 is: 99,178.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,540.17 : 173,275.59 = 71,856.31 : x
  2. Step 2: Convert to fraction form
    125,540.17/173,275.59 = 71,856.31/x
  3. Step 3: Cross multiply
    125,540.17x = 173,275.59 × 71,856.31
  4. Step 4: Simplify right side
    125,540.17x = 12,450,944,510.47
  5. Step 5: Solve for x
    x = 12,450,944,510.47/125,540.17
  6. Step 6: Final answer
    x = 99,178.97

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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.