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Finding the Fourth Proportional to 80,174.61, 120,303.41 and 58,169.61

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Solution

The fourth proportional to 80,174.61, 120,303.41 and 58,169.61 is: 87,284.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,174.61 : 120,303.41 = 58,169.61 : x
  2. Step 2: Convert to fraction form
    80,174.61/120,303.41 = 58,169.61/x
  3. Step 3: Cross multiply
    80,174.61x = 120,303.41 × 58,169.61
  4. Step 4: Simplify right side
    80,174.61x = 6,998,002,150.52
  5. Step 5: Solve for x
    x = 6,998,002,150.52/80,174.61
  6. Step 6: Final answer
    x = 87,284.52

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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.