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Finding the Fourth Proportional to 144,099.61, 216,146.68 and 84,542.13

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Solution

The fourth proportional to 144,099.61, 216,146.68 and 84,542.13 is: 126,811.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,099.61 : 216,146.68 = 84,542.13 : x
  2. Step 2: Convert to fraction form
    144,099.61/216,146.68 = 84,542.13/x
  3. Step 3: Cross multiply
    144,099.61x = 216,146.68 × 84,542.13
  4. Step 4: Simplify right side
    144,099.61x = 18,273,500,508.27
  5. Step 5: Solve for x
    x = 18,273,500,508.27/144,099.61
  6. Step 6: Final answer
    x = 126,811.59

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1.5x scale

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.