Home / 141,456.42-195,202.62-77,781.92

Finding the Fourth Proportional to 141,456.42, 195,202.62 and 77,781.92

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Solution

The fourth proportional to 141,456.42, 195,202.62 and 77,781.92 is: 107,335.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,456.42 : 195,202.62 = 77,781.92 : x
  2. Step 2: Convert to fraction form
    141,456.42/195,202.62 = 77,781.92/x
  3. Step 3: Cross multiply
    141,456.42x = 195,202.62 × 77,781.92
  4. Step 4: Simplify right side
    141,456.42x = 15,183,233,596.62
  5. Step 5: Solve for x
    x = 15,183,233,596.62/141,456.42
  6. Step 6: Final answer
    x = 107,335.06

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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.