Home / 108,089.96-149,121.78-62,760.20

Finding the Fourth Proportional to 108,089.96, 149,121.78 and 62,760.20

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Solution

The fourth proportional to 108,089.96, 149,121.78 and 62,760.20 is: 86,584.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,089.96 : 149,121.78 = 62,760.20 : x
  2. Step 2: Convert to fraction form
    108,089.96/149,121.78 = 62,760.20/x
  3. Step 3: Cross multiply
    108,089.96x = 149,121.78 × 62,760.20
  4. Step 4: Simplify right side
    108,089.96x = 9,358,912,737.16
  5. Step 5: Solve for x
    x = 9,358,912,737.16/108,089.96
  6. Step 6: Final answer
    x = 86,584.48

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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.