Home / 78,198.32-117,296.48-19,034.04

Finding the Fourth Proportional to 78,198.32, 117,296.48 and 19,034.04

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Solution

The fourth proportional to 78,198.32, 117,296.48 and 19,034.04 is: 28,550.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,198.32 : 117,296.48 = 19,034.04 : x
  2. Step 2: Convert to fraction form
    78,198.32/117,296.48 = 19,034.04/x
  3. Step 3: Cross multiply
    78,198.32x = 117,296.48 × 19,034.04
  4. Step 4: Simplify right side
    78,198.32x = 2,232,625,892.18
  5. Step 5: Solve for x
    x = 2,232,625,892.18/78,198.32
  6. Step 6: Final answer
    x = 28,550.82

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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.