Home / 149,257.92-223,653.60-86,116.80

Finding the Fourth Proportional to 149,257.92, 223,653.60 and 86,116.80

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Solution

The fourth proportional to 149,257.92, 223,653.60 and 86,116.80 is: 129,040.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,257.92 : 223,653.60 = 86,116.80 : x
  2. Step 2: Convert to fraction form
    149,257.92/223,653.60 = 86,116.80/x
  3. Step 3: Cross multiply
    149,257.92x = 223,653.60 × 86,116.80
  4. Step 4: Simplify right side
    149,257.92x = 19,260,332,340.48
  5. Step 5: Solve for x
    x = 19,260,332,340.48/149,257.92
  6. Step 6: Final answer
    x = 129,040.61

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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.