Home / 167,759.81-231,432.26-99,738.20

Finding the Fourth Proportional to 167,759.81, 231,432.26 and 99,738.20

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Solution

The fourth proportional to 167,759.81, 231,432.26 and 99,738.20 is: 137,593.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,759.81 : 231,432.26 = 99,738.20 : x
  2. Step 2: Convert to fraction form
    167,759.81/231,432.26 = 99,738.20/x
  3. Step 3: Cross multiply
    167,759.81x = 231,432.26 × 99,738.20
  4. Step 4: Simplify right side
    167,759.81x = 23,082,635,378.48
  5. Step 5: Solve for x
    x = 23,082,635,378.48/167,759.81
  6. Step 6: Final answer
    x = 137,593.36

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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.