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Finding the Fourth Proportional to 144,407.76, 216,281.09 and 88,123.95

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Solution

The fourth proportional to 144,407.76, 216,281.09 and 88,123.95 is: 131,984.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,407.76 : 216,281.09 = 88,123.95 : x
  2. Step 2: Convert to fraction form
    144,407.76/216,281.09 = 88,123.95/x
  3. Step 3: Cross multiply
    144,407.76x = 216,281.09 × 88,123.95
  4. Step 4: Simplify right side
    144,407.76x = 19,059,543,685.72
  5. Step 5: Solve for x
    x = 19,059,543,685.72/144,407.76
  6. Step 6: Final answer
    x = 131,984.21

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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.