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Finding the Fourth Proportional to 108,262.16, 149,304.84 and 67,979.72

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Solution

The fourth proportional to 108,262.16, 149,304.84 and 67,979.72 is: 93,751.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,262.16 : 149,304.84 = 67,979.72 : x
  2. Step 2: Convert to fraction form
    108,262.16/149,304.84 = 67,979.72/x
  3. Step 3: Cross multiply
    108,262.16x = 149,304.84 × 67,979.72
  4. Step 4: Simplify right side
    108,262.16x = 10,149,701,217.84
  5. Step 5: Solve for x
    x = 10,149,701,217.84/108,262.16
  6. Step 6: Final answer
    x = 93,751.14

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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.