Home / 113,165.06-169,721.25-42,121.15

Finding the Fourth Proportional to 113,165.06, 169,721.25 and 42,121.15

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Solution

The fourth proportional to 113,165.06, 169,721.25 and 42,121.15 is: 63,171.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,165.06 : 169,721.25 = 42,121.15 : x
  2. Step 2: Convert to fraction form
    113,165.06/169,721.25 = 42,121.15/x
  3. Step 3: Cross multiply
    113,165.06x = 169,721.25 × 42,121.15
  4. Step 4: Simplify right side
    113,165.06x = 7,148,854,229.44
  5. Step 5: Solve for x
    x = 7,148,854,229.44/113,165.06
  6. Step 6: Final answer
    x = 63,171.92

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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.