Home / 129,778.92-179,092.44-73,190.28

Finding the Fourth Proportional to 129,778.92, 179,092.44 and 73,190.28

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Solution

The fourth proportional to 129,778.92, 179,092.44 and 73,190.28 is: 101,001.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,778.92 : 179,092.44 = 73,190.28 : x
  2. Step 2: Convert to fraction form
    129,778.92/179,092.44 = 73,190.28/x
  3. Step 3: Cross multiply
    129,778.92x = 179,092.44 × 73,190.28
  4. Step 4: Simplify right side
    129,778.92x = 13,107,825,829.48
  5. Step 5: Solve for x
    x = 13,107,825,829.48/129,778.92
  6. Step 6: Final answer
    x = 101,001.19

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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.