Home / 143,609.59-215,397.97-38,436.76

Finding the Fourth Proportional to 143,609.59, 215,397.97 and 38,436.76

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Solution

The fourth proportional to 143,609.59, 215,397.97 and 38,436.76 is: 57,650.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,609.59 : 215,397.97 = 38,436.76 : x
  2. Step 2: Convert to fraction form
    143,609.59/215,397.97 = 38,436.76/x
  3. Step 3: Cross multiply
    143,609.59x = 215,397.97 × 38,436.76
  4. Step 4: Simplify right side
    143,609.59x = 8,279,199,442.79
  5. Step 5: Solve for x
    x = 8,279,199,442.79/143,609.59
  6. Step 6: Final answer
    x = 57,650.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.