Home / 132,414.39-182,718.18-78,689.07

Finding the Fourth Proportional to 132,414.39, 182,718.18 and 78,689.07

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Solution

The fourth proportional to 132,414.39, 182,718.18 and 78,689.07 is: 108,582.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,414.39 : 182,718.18 = 78,689.07 : x
  2. Step 2: Convert to fraction form
    132,414.39/182,718.18 = 78,689.07/x
  3. Step 3: Cross multiply
    132,414.39x = 182,718.18 × 78,689.07
  4. Step 4: Simplify right side
    132,414.39x = 14,377,923,656.29
  5. Step 5: Solve for x
    x = 14,377,923,656.29/132,414.39
  6. Step 6: Final answer
    x = 108,582.79

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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.