Home / 87,225.60-131,032.80-83,683.20

Finding the Fourth Proportional to 87,225.60, 131,032.80 and 83,683.20

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Solution

The fourth proportional to 87,225.60, 131,032.80 and 83,683.20 is: 125,711.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,225.60 : 131,032.80 = 83,683.20 : x
  2. Step 2: Convert to fraction form
    87,225.60/131,032.80 = 83,683.20/x
  3. Step 3: Cross multiply
    87,225.60x = 131,032.80 × 83,683.20
  4. Step 4: Simplify right side
    87,225.60x = 10,965,244,008.96
  5. Step 5: Solve for x
    x = 10,965,244,008.96/87,225.60
  6. Step 6: Final answer
    x = 125,711.31

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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.