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Finding the Fourth Proportional to 100,279.20, 150,418.80 and 41,095.20

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Solution

The fourth proportional to 100,279.20, 150,418.80 and 41,095.20 is: 61,642.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,279.20 : 150,418.80 = 41,095.20 : x
  2. Step 2: Convert to fraction form
    100,279.20/150,418.80 = 41,095.20/x
  3. Step 3: Cross multiply
    100,279.20x = 150,418.80 × 41,095.20
  4. Step 4: Simplify right side
    100,279.20x = 6,181,490,669.76
  5. Step 5: Solve for x
    x = 6,181,490,669.76/100,279.20
  6. Step 6: Final answer
    x = 61,642.80

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1.5x scale

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.