Home / 108,331.62-149,185.76-89,293.78

Finding the Fourth Proportional to 108,331.62, 149,185.76 and 89,293.78

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Solution

The fourth proportional to 108,331.62, 149,185.76 and 89,293.78 is: 122,968.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,331.62 : 149,185.76 = 89,293.78 : x
  2. Step 2: Convert to fraction form
    108,331.62/149,185.76 = 89,293.78/x
  3. Step 3: Cross multiply
    108,331.62x = 149,185.76 × 89,293.78
  4. Step 4: Simplify right side
    108,331.62x = 13,321,360,432.57
  5. Step 5: Solve for x
    x = 13,321,360,432.57/108,331.62
  6. Step 6: Final answer
    x = 122,968.35

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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.