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Finding the Fourth Proportional to 149,861.60, 224,727.60 and 74,952.80

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Solution

The fourth proportional to 149,861.60, 224,727.60 and 74,952.80 is: 112,396.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,861.60 : 224,727.60 = 74,952.80 : x
  2. Step 2: Convert to fraction form
    149,861.60/224,727.60 = 74,952.80/x
  3. Step 3: Cross multiply
    149,861.60x = 224,727.60 × 74,952.80
  4. Step 4: Simplify right side
    149,861.60x = 16,843,962,857.28
  5. Step 5: Solve for x
    x = 16,843,962,857.28/149,861.60
  6. Step 6: Final answer
    x = 112,396.79

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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.