Home / 134,586.46-185,720.43-80,839.54

Finding the Fourth Proportional to 134,586.46, 185,720.43 and 80,839.54

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Solution

The fourth proportional to 134,586.46, 185,720.43 and 80,839.54 is: 111,553.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,586.46 : 185,720.43 = 80,839.54 : x
  2. Step 2: Convert to fraction form
    134,586.46/185,720.43 = 80,839.54/x
  3. Step 3: Cross multiply
    134,586.46x = 185,720.43 × 80,839.54
  4. Step 4: Simplify right side
    134,586.46x = 15,013,554,129.80
  5. Step 5: Solve for x
    x = 15,013,554,129.80/134,586.46
  6. Step 6: Final answer
    x = 111,553.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.