Home / 129,972.72-194,960.76-45,735.48

Finding the Fourth Proportional to 129,972.72, 194,960.76 and 45,735.48

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Solution

The fourth proportional to 129,972.72, 194,960.76 and 45,735.48 is: 68,603.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,972.72 : 194,960.76 = 45,735.48 : x
  2. Step 2: Convert to fraction form
    129,972.72/194,960.76 = 45,735.48/x
  3. Step 3: Cross multiply
    129,972.72x = 194,960.76 × 45,735.48
  4. Step 4: Simplify right side
    129,972.72x = 8,916,623,939.76
  5. Step 5: Solve for x
    x = 8,916,623,939.76/129,972.72
  6. Step 6: Final answer
    x = 68,603.81

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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.