Home / 144,761.24-217,005.78-78,101.48

Finding the Fourth Proportional to 144,761.24, 217,005.78 and 78,101.48

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Solution

The fourth proportional to 144,761.24, 217,005.78 and 78,101.48 is: 117,078.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,761.24 : 217,005.78 = 78,101.48 : x
  2. Step 2: Convert to fraction form
    144,761.24/217,005.78 = 78,101.48/x
  3. Step 3: Cross multiply
    144,761.24x = 217,005.78 × 78,101.48
  4. Step 4: Simplify right side
    144,761.24x = 16,948,472,586.55
  5. Step 5: Solve for x
    x = 16,948,472,586.55/144,761.24
  6. Step 6: Final answer
    x = 117,078.80

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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.