Home / 185,977.76-278,809.44-80,717.60

Finding the Fourth Proportional to 185,977.76, 278,809.44 and 80,717.60

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Solution

The fourth proportional to 185,977.76, 278,809.44 and 80,717.60 is: 121,008.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,977.76 : 278,809.44 = 80,717.60 : x
  2. Step 2: Convert to fraction form
    185,977.76/278,809.44 = 80,717.60/x
  3. Step 3: Cross multiply
    185,977.76x = 278,809.44 × 80,717.60
  4. Step 4: Simplify right side
    185,977.76x = 22,504,828,854.14
  5. Step 5: Solve for x
    x = 22,504,828,854.14/185,977.76
  6. Step 6: Final answer
    x = 121,008.17

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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.