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Finding the Fourth Proportional to 144,414.39, 216,621.61 and 54,432.72

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Solution

The fourth proportional to 144,414.39, 216,621.61 and 54,432.72 is: 81,649.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,414.39 : 216,621.61 = 54,432.72 : x
  2. Step 2: Convert to fraction form
    144,414.39/216,621.61 = 54,432.72/x
  3. Step 3: Cross multiply
    144,414.39x = 216,621.61 × 54,432.72
  4. Step 4: Simplify right side
    144,414.39x = 11,791,304,323.45
  5. Step 5: Solve for x
    x = 11,791,304,323.45/144,414.39
  6. Step 6: Final answer
    x = 81,649.10

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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.