Home / 108,127.85-149,243.18-69,930.14

Finding the Fourth Proportional to 108,127.85, 149,243.18 and 69,930.14

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Solution

The fourth proportional to 108,127.85, 149,243.18 and 69,930.14 is: 96,520.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,127.85 : 149,243.18 = 69,930.14 : x
  2. Step 2: Convert to fraction form
    108,127.85/149,243.18 = 69,930.14/x
  3. Step 3: Cross multiply
    108,127.85x = 149,243.18 × 69,930.14
  4. Step 4: Simplify right side
    108,127.85x = 10,436,595,375.58
  5. Step 5: Solve for x
    x = 10,436,595,375.58/108,127.85
  6. Step 6: Final answer
    x = 96,520.89

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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.