Home / 129,588.20-194,468.70-73,428.20

Finding the Fourth Proportional to 129,588.20, 194,468.70 and 73,428.20

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Solution

The fourth proportional to 129,588.20, 194,468.70 and 73,428.20 is: 110,191.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,588.20 : 194,468.70 = 73,428.20 : x
  2. Step 2: Convert to fraction form
    129,588.20/194,468.70 = 73,428.20/x
  3. Step 3: Cross multiply
    129,588.20x = 194,468.70 × 73,428.20
  4. Step 4: Simplify right side
    129,588.20x = 14,279,486,597.34
  5. Step 5: Solve for x
    x = 14,279,486,597.34/129,588.20
  6. Step 6: Final answer
    x = 110,191.26

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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.