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Finding the Fourth Proportional to 87,173.60, 119,922.03 and 76,369.82

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Solution

The fourth proportional to 87,173.60, 119,922.03 and 76,369.82 is: 105,059.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,173.60 : 119,922.03 = 76,369.82 : x
  2. Step 2: Convert to fraction form
    87,173.60/119,922.03 = 76,369.82/x
  3. Step 3: Cross multiply
    87,173.60x = 119,922.03 × 76,369.82
  4. Step 4: Simplify right side
    87,173.60x = 9,158,423,245.52
  5. Step 5: Solve for x
    x = 9,158,423,245.52/87,173.60
  6. Step 6: Final answer
    x = 105,059.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.