Home / 87,498.24-131,125.29-66,133.40

Finding the Fourth Proportional to 87,498.24, 131,125.29 and 66,133.40

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Solution

The fourth proportional to 87,498.24, 131,125.29 and 66,133.40 is: 99,107.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,498.24 : 131,125.29 = 66,133.40 : x
  2. Step 2: Convert to fraction form
    87,498.24/131,125.29 = 66,133.40/x
  3. Step 3: Cross multiply
    87,498.24x = 131,125.29 × 66,133.40
  4. Step 4: Simplify right side
    87,498.24x = 8,671,760,598.06
  5. Step 5: Solve for x
    x = 8,671,760,598.06/87,498.24
  6. Step 6: Final answer
    x = 99,107.83

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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.