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Finding the Fourth Proportional to 133,332.20, 199,706.70 and 103,516.10

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Solution

The fourth proportional to 133,332.20, 199,706.70 and 103,516.10 is: 155,047.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,332.20 : 199,706.70 = 103,516.10 : x
  2. Step 2: Convert to fraction form
    133,332.20/199,706.70 = 103,516.10/x
  3. Step 3: Cross multiply
    133,332.20x = 199,706.70 × 103,516.10
  4. Step 4: Simplify right side
    133,332.20x = 20,672,858,727.87
  5. Step 5: Solve for x
    x = 20,672,858,727.87/133,332.20
  6. Step 6: Final answer
    x = 155,047.76

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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.