Home / 185,718.60-278,540.88-90,908.04

Finding the Fourth Proportional to 185,718.60, 278,540.88 and 90,908.04

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Solution

The fourth proportional to 185,718.60, 278,540.88 and 90,908.04 is: 136,343.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,718.60 : 278,540.88 = 90,908.04 : x
  2. Step 2: Convert to fraction form
    185,718.60/278,540.88 = 90,908.04/x
  3. Step 3: Cross multiply
    185,718.60x = 278,540.88 × 90,908.04
  4. Step 4: Simplify right side
    185,718.60x = 25,321,605,460.68
  5. Step 5: Solve for x
    x = 25,321,605,460.68/185,718.60
  6. Step 6: Final answer
    x = 136,343.94

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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.