Home / 129,442.43-194,174.73-39,505.39

Finding the Fourth Proportional to 129,442.43, 194,174.73 and 39,505.39

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Solution

The fourth proportional to 129,442.43, 194,174.73 and 39,505.39 is: 59,261.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,442.43 : 194,174.73 = 39,505.39 : x
  2. Step 2: Convert to fraction form
    129,442.43/194,174.73 = 39,505.39/x
  3. Step 3: Cross multiply
    129,442.43x = 194,174.73 × 39,505.39
  4. Step 4: Simplify right side
    129,442.43x = 7,670,948,436.79
  5. Step 5: Solve for x
    x = 7,670,948,436.79/129,442.43
  6. Step 6: Final answer
    x = 59,261.47

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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.