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Finding the Fourth Proportional to 149,115.80, 223,527.90 and 133,369.40

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Solution

The fourth proportional to 149,115.80, 223,527.90 and 133,369.40 is: 199,923.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,115.80 : 223,527.90 = 133,369.40 : x
  2. Step 2: Convert to fraction form
    149,115.80/223,527.90 = 133,369.40/x
  3. Step 3: Cross multiply
    149,115.80x = 223,527.90 × 133,369.40
  4. Step 4: Simplify right side
    149,115.80x = 29,811,781,906.26
  5. Step 5: Solve for x
    x = 29,811,781,906.26/149,115.80
  6. Step 6: Final answer
    x = 199,923.70

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1.5x scale

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.