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Finding the Fourth Proportional to 144,200.10, 216,300.15 and 85,151.10

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Solution

The fourth proportional to 144,200.10, 216,300.15 and 85,151.10 is: 127,726.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,200.10 : 216,300.15 = 85,151.10 : x
  2. Step 2: Convert to fraction form
    144,200.10/216,300.15 = 85,151.10/x
  3. Step 3: Cross multiply
    144,200.10x = 216,300.15 × 85,151.10
  4. Step 4: Simplify right side
    144,200.10x = 18,418,195,702.67
  5. Step 5: Solve for x
    x = 18,418,195,702.67/144,200.10
  6. Step 6: Final answer
    x = 127,726.65

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Similar ratio
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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.