Home / 129,656.64-194,561.49-54,771.93

Finding the Fourth Proportional to 129,656.64, 194,561.49 and 54,771.93

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Solution

The fourth proportional to 129,656.64, 194,561.49 and 54,771.93 is: 82,190.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,656.64 : 194,561.49 = 54,771.93 : x
  2. Step 2: Convert to fraction form
    129,656.64/194,561.49 = 54,771.93/x
  3. Step 3: Cross multiply
    129,656.64x = 194,561.49 × 54,771.93
  4. Step 4: Simplify right side
    129,656.64x = 10,656,508,310.98
  5. Step 5: Solve for x
    x = 10,656,508,310.98/129,656.64
  6. Step 6: Final answer
    x = 82,190.22

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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.