Home / 89,966.97-134,740.26-71,120.43

Finding the Fourth Proportional to 89,966.97, 134,740.26 and 71,120.43

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Solution

The fourth proportional to 89,966.97, 134,740.26 and 71,120.43 is: 106,514.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,966.97 : 134,740.26 = 71,120.43 : x
  2. Step 2: Convert to fraction form
    89,966.97/134,740.26 = 71,120.43/x
  3. Step 3: Cross multiply
    89,966.97x = 134,740.26 × 71,120.43
  4. Step 4: Simplify right side
    89,966.97x = 9,582,785,229.51
  5. Step 5: Solve for x
    x = 9,582,785,229.51/89,966.97
  6. Step 6: Final answer
    x = 106,514.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.