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Finding the Fourth Proportional to 108,516.95, 149,749.91 and 60,116.90

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Solution

The fourth proportional to 108,516.95, 149,749.91 and 60,116.90 is: 82,959.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,516.95 : 149,749.91 = 60,116.90 : x
  2. Step 2: Convert to fraction form
    108,516.95/149,749.91 = 60,116.90/x
  3. Step 3: Cross multiply
    108,516.95x = 149,749.91 × 60,116.90
  4. Step 4: Simplify right side
    108,516.95x = 9,002,499,315.14
  5. Step 5: Solve for x
    x = 9,002,499,315.14/108,516.95
  6. Step 6: Final answer
    x = 82,959.39

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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.