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Finding the Fourth Proportional to 108,863.79, 150,248.43 and 66,446.97

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Solution

The fourth proportional to 108,863.79, 150,248.43 and 66,446.97 is: 91,706.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,863.79 : 150,248.43 = 66,446.97 : x
  2. Step 2: Convert to fraction form
    108,863.79/150,248.43 = 66,446.97/x
  3. Step 3: Cross multiply
    108,863.79x = 150,248.43 × 66,446.97
  4. Step 4: Simplify right side
    108,863.79x = 9,983,552,920.76
  5. Step 5: Solve for x
    x = 9,983,552,920.76/108,863.79
  6. Step 6: Final answer
    x = 91,706.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.