Home / 142,704.75-196,932.57-79,046.64

Finding the Fourth Proportional to 142,704.75, 196,932.57 and 79,046.64

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Solution

The fourth proportional to 142,704.75, 196,932.57 and 79,046.64 is: 109,084.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,704.75 : 196,932.57 = 79,046.64 : x
  2. Step 2: Convert to fraction form
    142,704.75/196,932.57 = 79,046.64/x
  3. Step 3: Cross multiply
    142,704.75x = 196,932.57 × 79,046.64
  4. Step 4: Simplify right side
    142,704.75x = 15,566,857,965.06
  5. Step 5: Solve for x
    x = 15,566,857,965.06/142,704.75
  6. Step 6: Final answer
    x = 109,084.37

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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.