Home / 129,415.70-194,151.15-73,282.10

Finding the Fourth Proportional to 129,415.70, 194,151.15 and 73,282.10

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Solution

The fourth proportional to 129,415.70, 194,151.15 and 73,282.10 is: 109,938.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,415.70 : 194,151.15 = 73,282.10 : x
  2. Step 2: Convert to fraction form
    129,415.70/194,151.15 = 73,282.10/x
  3. Step 3: Cross multiply
    129,415.70x = 194,151.15 × 73,282.10
  4. Step 4: Simplify right side
    129,415.70x = 14,227,803,989.42
  5. Step 5: Solve for x
    x = 14,227,803,989.42/129,415.70
  6. Step 6: Final answer
    x = 109,938.78

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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.