Home / 109,489.08-151,017.13-71,177.97

Finding the Fourth Proportional to 109,489.08, 151,017.13 and 71,177.97

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Solution

The fourth proportional to 109,489.08, 151,017.13 and 71,177.97 is: 98,175.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,489.08 : 151,017.13 = 71,177.97 : x
  2. Step 2: Convert to fraction form
    109,489.08/151,017.13 = 71,177.97/x
  3. Step 3: Cross multiply
    109,489.08x = 151,017.13 × 71,177.97
  4. Step 4: Simplify right side
    109,489.08x = 10,749,092,329.89
  5. Step 5: Solve for x
    x = 10,749,092,329.89/109,489.08
  6. Step 6: Final answer
    x = 98,175.02

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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.