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Finding the Fourth Proportional to 80,184.81, 120,241.67 and 42,737.93

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Solution

The fourth proportional to 80,184.81, 120,241.67 and 42,737.93 is: 64,087.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,184.81 : 120,241.67 = 42,737.93 : x
  2. Step 2: Convert to fraction form
    80,184.81/120,241.67 = 42,737.93/x
  3. Step 3: Cross multiply
    80,184.81x = 120,241.67 × 42,737.93
  4. Step 4: Simplify right side
    80,184.81x = 5,138,879,260.65
  5. Step 5: Solve for x
    x = 5,138,879,260.65/80,184.81
  6. Step 6: Final answer
    x = 64,087.94

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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.