Home / 95,520.97-142,986.16-81,349.21

Finding the Fourth Proportional to 95,520.97, 142,986.16 and 81,349.21

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Solution

The fourth proportional to 95,520.97, 142,986.16 and 81,349.21 is: 121,772.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,520.97 : 142,986.16 = 81,349.21 : x
  2. Step 2: Convert to fraction form
    95,520.97/142,986.16 = 81,349.21/x
  3. Step 3: Cross multiply
    95,520.97x = 142,986.16 × 81,349.21
  4. Step 4: Simplify right side
    95,520.97x = 11,631,811,437.35
  5. Step 5: Solve for x
    x = 11,631,811,437.35/95,520.97
  6. Step 6: Final answer
    x = 121,772.33

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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.