Home / 129,795.90-194,679.45-36,311.10

Finding the Fourth Proportional to 129,795.90, 194,679.45 and 36,311.10

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Solution

The fourth proportional to 129,795.90, 194,679.45 and 36,311.10 is: 54,462.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,795.90 : 194,679.45 = 36,311.10 : x
  2. Step 2: Convert to fraction form
    129,795.90/194,679.45 = 36,311.10/x
  3. Step 3: Cross multiply
    129,795.90x = 194,679.45 × 36,311.10
  4. Step 4: Simplify right side
    129,795.90x = 7,069,024,976.90
  5. Step 5: Solve for x
    x = 7,069,024,976.90/129,795.90
  6. Step 6: Final answer
    x = 54,462.62

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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.