Home / 107,761.46-161,603.30-45,436.82

Finding the Fourth Proportional to 107,761.46, 161,603.30 and 45,436.82

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Solution

The fourth proportional to 107,761.46, 161,603.30 and 45,436.82 is: 68,138.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,761.46 : 161,603.30 = 45,436.82 : x
  2. Step 2: Convert to fraction form
    107,761.46/161,603.30 = 45,436.82/x
  3. Step 3: Cross multiply
    107,761.46x = 161,603.30 × 45,436.82
  4. Step 4: Simplify right side
    107,761.46x = 7,342,739,359.08
  5. Step 5: Solve for x
    x = 7,342,739,359.08/107,761.46
  6. Step 6: Final answer
    x = 68,138.83

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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.