Home / 119,979.78-165,471.90-89,836.85

Finding the Fourth Proportional to 119,979.78, 165,471.90 and 89,836.85

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Solution

The fourth proportional to 119,979.78, 165,471.90 and 89,836.85 is: 123,899.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,979.78 : 165,471.90 = 89,836.85 : x
  2. Step 2: Convert to fraction form
    119,979.78/165,471.90 = 89,836.85/x
  3. Step 3: Cross multiply
    119,979.78x = 165,471.90 × 89,836.85
  4. Step 4: Simplify right side
    119,979.78x = 14,865,473,432.16
  5. Step 5: Solve for x
    x = 14,865,473,432.16/119,979.78
  6. Step 6: Final answer
    x = 123,899.82

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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.