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Finding the Fourth Proportional to 136,379.97, 188,190.87 and 75,956.24

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Solution

The fourth proportional to 136,379.97, 188,190.87 and 75,956.24 is: 104,812.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,379.97 : 188,190.87 = 75,956.24 : x
  2. Step 2: Convert to fraction form
    136,379.97/188,190.87 = 75,956.24/x
  3. Step 3: Cross multiply
    136,379.97x = 188,190.87 × 75,956.24
  4. Step 4: Simplify right side
    136,379.97x = 14,294,270,136.47
  5. Step 5: Solve for x
    x = 14,294,270,136.47/136,379.97
  6. Step 6: Final answer
    x = 104,812.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.