Home / 126,849.80-190,141.86-42,589.28

Finding the Fourth Proportional to 126,849.80, 190,141.86 and 42,589.28

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Solution

The fourth proportional to 126,849.80, 190,141.86 and 42,589.28 is: 63,839.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,849.80 : 190,141.86 = 42,589.28 : x
  2. Step 2: Convert to fraction form
    126,849.80/190,141.86 = 42,589.28/x
  3. Step 3: Cross multiply
    126,849.80x = 190,141.86 × 42,589.28
  4. Step 4: Simplify right side
    126,849.80x = 8,098,004,915.26
  5. Step 5: Solve for x
    x = 8,098,004,915.26/126,849.80
  6. Step 6: Final answer
    x = 63,839.32

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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.