Home / 185,746.20-278,560.95-79,129.04

Finding the Fourth Proportional to 185,746.20, 278,560.95 and 79,129.04

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Solution

The fourth proportional to 185,746.20, 278,560.95 and 79,129.04 is: 118,668.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,746.20 : 278,560.95 = 79,129.04 : x
  2. Step 2: Convert to fraction form
    185,746.20/278,560.95 = 79,129.04/x
  3. Step 3: Cross multiply
    185,746.20x = 278,560.95 × 79,129.04
  4. Step 4: Simplify right side
    185,746.20x = 22,042,259,162.18
  5. Step 5: Solve for x
    x = 22,042,259,162.18/185,746.20
  6. Step 6: Final answer
    x = 118,668.70

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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.