Home / 126,616.74-174,754.47-81,351.33

Finding the Fourth Proportional to 126,616.74, 174,754.47 and 81,351.33

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Solution

The fourth proportional to 126,616.74, 174,754.47 and 81,351.33 is: 112,279.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,616.74 : 174,754.47 = 81,351.33 : x
  2. Step 2: Convert to fraction form
    126,616.74/174,754.47 = 81,351.33/x
  3. Step 3: Cross multiply
    126,616.74x = 174,754.47 × 81,351.33
  4. Step 4: Simplify right side
    126,616.74x = 14,216,508,557.95
  5. Step 5: Solve for x
    x = 14,216,508,557.95/126,616.74
  6. Step 6: Final answer
    x = 112,279.85

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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.