Home / 129,353.78-193,982.27-45,092.31

Finding the Fourth Proportional to 129,353.78, 193,982.27 and 45,092.31

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Solution

The fourth proportional to 129,353.78, 193,982.27 and 45,092.31 is: 67,621.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,353.78 : 193,982.27 = 45,092.31 : x
  2. Step 2: Convert to fraction form
    129,353.78/193,982.27 = 45,092.31/x
  3. Step 3: Cross multiply
    129,353.78x = 193,982.27 × 45,092.31
  4. Step 4: Simplify right side
    129,353.78x = 8,747,108,427.88
  5. Step 5: Solve for x
    x = 8,747,108,427.88/129,353.78
  6. Step 6: Final answer
    x = 67,621.59

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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.