Home / 108,419.23-149,618.53-60,681.79

Finding the Fourth Proportional to 108,419.23, 149,618.53 and 60,681.79

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Solution

The fourth proportional to 108,419.23, 149,618.53 and 60,681.79 is: 83,740.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,419.23 : 149,618.53 = 60,681.79 : x
  2. Step 2: Convert to fraction form
    108,419.23/149,618.53 = 60,681.79/x
  3. Step 3: Cross multiply
    108,419.23x = 149,618.53 × 60,681.79
  4. Step 4: Simplify right side
    108,419.23x = 9,079,120,217.57
  5. Step 5: Solve for x
    x = 9,079,120,217.57/108,419.23
  6. Step 6: Final answer
    x = 83,740.87

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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.