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Finding the Fourth Proportional to 103,167.95, 154,523.30 and 79,299.74

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Solution

The fourth proportional to 103,167.95, 154,523.30 and 79,299.74 is: 118,773.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,167.95 : 154,523.30 = 79,299.74 : x
  2. Step 2: Convert to fraction form
    103,167.95/154,523.30 = 79,299.74/x
  3. Step 3: Cross multiply
    103,167.95x = 154,523.30 × 79,299.74
  4. Step 4: Simplify right side
    103,167.95x = 12,253,657,503.75
  5. Step 5: Solve for x
    x = 12,253,657,503.75/103,167.95
  6. Step 6: Final answer
    x = 118,773.88

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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.