Home / 129,838.06-194,778.62-45,576.36

Finding the Fourth Proportional to 129,838.06, 194,778.62 and 45,576.36

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Solution

The fourth proportional to 129,838.06, 194,778.62 and 45,576.36 is: 68,372.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,838.06 : 194,778.62 = 45,576.36 : x
  2. Step 2: Convert to fraction form
    129,838.06/194,778.62 = 45,576.36/x
  3. Step 3: Cross multiply
    129,838.06x = 194,778.62 × 45,576.36
  4. Step 4: Simplify right side
    129,838.06x = 8,877,300,505.42
  5. Step 5: Solve for x
    x = 8,877,300,505.42/129,838.06
  6. Step 6: Final answer
    x = 68,372.10

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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.