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Finding the Fourth Proportional to 147,959.31, 204,184.74 and 79,976.12

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Solution

The fourth proportional to 147,959.31, 204,184.74 and 79,976.12 is: 110,367.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,959.31 : 204,184.74 = 79,976.12 : x
  2. Step 2: Convert to fraction form
    147,959.31/204,184.74 = 79,976.12/x
  3. Step 3: Cross multiply
    147,959.31x = 204,184.74 × 79,976.12
  4. Step 4: Simplify right side
    147,959.31x = 16,329,902,247.49
  5. Step 5: Solve for x
    x = 16,329,902,247.49/147,959.31
  6. Step 6: Final answer
    x = 110,367.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.