Home / 87,813.05-131,802.19-83,013.74

Finding the Fourth Proportional to 87,813.05, 131,802.19 and 83,013.74

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Solution

The fourth proportional to 87,813.05, 131,802.19 and 83,013.74 is: 124,598.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,813.05 : 131,802.19 = 83,013.74 : x
  2. Step 2: Convert to fraction form
    87,813.05/131,802.19 = 83,013.74/x
  3. Step 3: Cross multiply
    87,813.05x = 131,802.19 × 83,013.74
  4. Step 4: Simplify right side
    87,813.05x = 10,941,391,833.46
  5. Step 5: Solve for x
    x = 10,941,391,833.46/87,813.05
  6. Step 6: Final answer
    x = 124,598.69

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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.