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Finding the Fourth Proportional to 180,279.78, 248,764.52 and 99,696.36

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Solution

The fourth proportional to 180,279.78, 248,764.52 and 99,696.36 is: 137,569.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,279.78 : 248,764.52 = 99,696.36 : x
  2. Step 2: Convert to fraction form
    180,279.78/248,764.52 = 99,696.36/x
  3. Step 3: Cross multiply
    180,279.78x = 248,764.52 × 99,696.36
  4. Step 4: Simplify right side
    180,279.78x = 24,800,917,141.15
  5. Step 5: Solve for x
    x = 24,800,917,141.15/180,279.78
  6. Step 6: Final answer
    x = 137,569.04

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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.