Home / 129,612.72-194,137.20-62,912.46

Finding the Fourth Proportional to 129,612.72, 194,137.20 and 62,912.46

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Solution

The fourth proportional to 129,612.72, 194,137.20 and 62,912.46 is: 94,231.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,612.72 : 194,137.20 = 62,912.46 : x
  2. Step 2: Convert to fraction form
    129,612.72/194,137.20 = 62,912.46/x
  3. Step 3: Cross multiply
    129,612.72x = 194,137.20 × 62,912.46
  4. Step 4: Simplify right side
    129,612.72x = 12,213,648,829.51
  5. Step 5: Solve for x
    x = 12,213,648,829.51/129,612.72
  6. Step 6: Final answer
    x = 94,231.87

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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.