Home / 120,747.92-181,185.66-87,740.82

Finding the Fourth Proportional to 120,747.92, 181,185.66 and 87,740.82

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Solution

The fourth proportional to 120,747.92, 181,185.66 and 87,740.82 is: 131,657.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,747.92 : 181,185.66 = 87,740.82 : x
  2. Step 2: Convert to fraction form
    120,747.92/181,185.66 = 87,740.82/x
  3. Step 3: Cross multiply
    120,747.92x = 181,185.66 × 87,740.82
  4. Step 4: Simplify right side
    120,747.92x = 15,897,378,380.64
  5. Step 5: Solve for x
    x = 15,897,378,380.64/120,747.92
  6. Step 6: Final answer
    x = 131,657.58

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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.