Home / 87,118.08-130,849.92-74,633.28

Finding the Fourth Proportional to 87,118.08, 130,849.92 and 74,633.28

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Solution

The fourth proportional to 87,118.08, 130,849.92 and 74,633.28 is: 112,097.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,118.08 : 130,849.92 = 74,633.28 : x
  2. Step 2: Convert to fraction form
    87,118.08/130,849.92 = 74,633.28/x
  3. Step 3: Cross multiply
    87,118.08x = 130,849.92 × 74,633.28
  4. Step 4: Simplify right side
    87,118.08x = 9,765,758,717.34
  5. Step 5: Solve for x
    x = 9,765,758,717.34/87,118.08
  6. Step 6: Final answer
    x = 112,097.96

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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.