Home / 141,431.04-195,175.68-77,772.96

Finding the Fourth Proportional to 141,431.04, 195,175.68 and 77,772.96

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Solution

The fourth proportional to 141,431.04, 195,175.68 and 77,772.96 is: 107,327.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,431.04 : 195,175.68 = 77,772.96 : x
  2. Step 2: Convert to fraction form
    141,431.04/195,175.68 = 77,772.96/x
  3. Step 3: Cross multiply
    141,431.04x = 195,175.68 × 77,772.96
  4. Step 4: Simplify right side
    141,431.04x = 15,179,390,353.61
  5. Step 5: Solve for x
    x = 15,179,390,353.61/141,431.04
  6. Step 6: Final answer
    x = 107,327.15

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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.