Home / 113,007.76-169,542.92-91,895.61

Finding the Fourth Proportional to 113,007.76, 169,542.92 and 91,895.61

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Solution

The fourth proportional to 113,007.76, 169,542.92 and 91,895.61 is: 137,868.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,007.76 : 169,542.92 = 91,895.61 : x
  2. Step 2: Convert to fraction form
    113,007.76/169,542.92 = 91,895.61/x
  3. Step 3: Cross multiply
    113,007.76x = 169,542.92 × 91,895.61
  4. Step 4: Simplify right side
    113,007.76x = 15,580,250,920.11
  5. Step 5: Solve for x
    x = 15,580,250,920.11/113,007.76
  6. Step 6: Final answer
    x = 137,868.86

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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.