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Finding the Fourth Proportional to 123,379.60, 185,068.80 and 29,885.36

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Solution

The fourth proportional to 123,379.60, 185,068.80 and 29,885.36 is: 44,827.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,379.60 : 185,068.80 = 29,885.36 : x
  2. Step 2: Convert to fraction form
    123,379.60/185,068.80 = 29,885.36/x
  3. Step 3: Cross multiply
    123,379.60x = 185,068.80 × 29,885.36
  4. Step 4: Simplify right side
    123,379.60x = 5,530,847,712.77
  5. Step 5: Solve for x
    x = 5,530,847,712.77/123,379.60
  6. Step 6: Final answer
    x = 44,827.89

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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.