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Finding the Fourth Proportional to 185,059.80, 277,719.30 and 79,954.20

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Solution

The fourth proportional to 185,059.80, 277,719.30 and 79,954.20 is: 119,987.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,059.80 : 277,719.30 = 79,954.20 : x
  2. Step 2: Convert to fraction form
    185,059.80/277,719.30 = 79,954.20/x
  3. Step 3: Cross multiply
    185,059.80x = 277,719.30 × 79,954.20
  4. Step 4: Simplify right side
    185,059.80x = 22,204,824,456.06
  5. Step 5: Solve for x
    x = 22,204,824,456.06/185,059.80
  6. Step 6: Final answer
    x = 119,987.29

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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.