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Finding the Fourth Proportional to 100,930.92, 151,283.22 and 40,945.46

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Solution

The fourth proportional to 100,930.92, 151,283.22 and 40,945.46 is: 61,372.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,930.92 : 151,283.22 = 40,945.46 : x
  2. Step 2: Convert to fraction form
    100,930.92/151,283.22 = 40,945.46/x
  3. Step 3: Cross multiply
    100,930.92x = 151,283.22 × 40,945.46
  4. Step 4: Simplify right side
    100,930.92x = 6,194,361,033.18
  5. Step 5: Solve for x
    x = 6,194,361,033.18/100,930.92
  6. Step 6: Final answer
    x = 61,372.28

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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.