Home / 122,687.28-183,702.54-72,044.52

Finding the Fourth Proportional to 122,687.28, 183,702.54 and 72,044.52

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Solution

The fourth proportional to 122,687.28, 183,702.54 and 72,044.52 is: 107,873.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,687.28 : 183,702.54 = 72,044.52 : x
  2. Step 2: Convert to fraction form
    122,687.28/183,702.54 = 72,044.52/x
  3. Step 3: Cross multiply
    122,687.28x = 183,702.54 × 72,044.52
  4. Step 4: Simplify right side
    122,687.28x = 13,234,761,317.08
  5. Step 5: Solve for x
    x = 13,234,761,317.08/122,687.28
  6. Step 6: Final answer
    x = 107,873.95

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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.