Home / 108,275.24-149,446.90-86,680.64

Finding the Fourth Proportional to 108,275.24, 149,446.90 and 86,680.64

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Solution

The fourth proportional to 108,275.24, 149,446.90 and 86,680.64 is: 119,640.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,275.24 : 149,446.90 = 86,680.64 : x
  2. Step 2: Convert to fraction form
    108,275.24/149,446.90 = 86,680.64/x
  3. Step 3: Cross multiply
    108,275.24x = 149,446.90 × 86,680.64
  4. Step 4: Simplify right side
    108,275.24x = 12,954,152,938.02
  5. Step 5: Solve for x
    x = 12,954,152,938.02/108,275.24
  6. Step 6: Final answer
    x = 119,640.95

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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.