Home / 102,191.60-141,049.43-79,175.88

Finding the Fourth Proportional to 102,191.60, 141,049.43 and 79,175.88

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Solution

The fourth proportional to 102,191.60, 141,049.43 and 79,175.88 is: 109,282.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,191.60 : 141,049.43 = 79,175.88 : x
  2. Step 2: Convert to fraction form
    102,191.60/141,049.43 = 79,175.88/x
  3. Step 3: Cross multiply
    102,191.60x = 141,049.43 × 79,175.88
  4. Step 4: Simplify right side
    102,191.60x = 11,167,712,347.87
  5. Step 5: Solve for x
    x = 11,167,712,347.87/102,191.60
  6. Step 6: Final answer
    x = 109,282.10

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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.