Home / 118,876.38-178,272.06-55,685.70

Finding the Fourth Proportional to 118,876.38, 178,272.06 and 55,685.70

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Solution

The fourth proportional to 118,876.38, 178,272.06 and 55,685.70 is: 83,508.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,876.38 : 178,272.06 = 55,685.70 : x
  2. Step 2: Convert to fraction form
    118,876.38/178,272.06 = 55,685.70/x
  3. Step 3: Cross multiply
    118,876.38x = 178,272.06 × 55,685.70
  4. Step 4: Simplify right side
    118,876.38x = 9,927,204,451.54
  5. Step 5: Solve for x
    x = 9,927,204,451.54/118,876.38
  6. Step 6: Final answer
    x = 83,508.64

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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.