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Finding the Fourth Proportional to 133,171.02, 199,720.08 and 39,674.34

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Solution

The fourth proportional to 133,171.02, 199,720.08 and 39,674.34 is: 59,500.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,171.02 : 199,720.08 = 39,674.34 : x
  2. Step 2: Convert to fraction form
    133,171.02/199,720.08 = 39,674.34/x
  3. Step 3: Cross multiply
    133,171.02x = 199,720.08 × 39,674.34
  4. Step 4: Simplify right side
    133,171.02x = 7,923,762,358.75
  5. Step 5: Solve for x
    x = 7,923,762,358.75/133,171.02
  6. Step 6: Final answer
    x = 59,500.65

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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.