Home / 141,565.16-212,478.96-71,493.68

Finding the Fourth Proportional to 141,565.16, 212,478.96 and 71,493.68

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Solution

The fourth proportional to 141,565.16, 212,478.96 and 71,493.68 is: 107,306.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,565.16 : 212,478.96 = 71,493.68 : x
  2. Step 2: Convert to fraction form
    141,565.16/212,478.96 = 71,493.68/x
  3. Step 3: Cross multiply
    141,565.16x = 212,478.96 × 71,493.68
  4. Step 4: Simplify right side
    141,565.16x = 15,190,902,772.97
  5. Step 5: Solve for x
    x = 15,190,902,772.97/141,565.16
  6. Step 6: Final answer
    x = 107,306.79

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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.