Home / 199,368.78-275,121.20-113,339.04

Finding the Fourth Proportional to 199,368.78, 275,121.20 and 113,339.04

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Solution

The fourth proportional to 199,368.78, 275,121.20 and 113,339.04 is: 156,403.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,368.78 : 275,121.20 = 113,339.04 : x
  2. Step 2: Convert to fraction form
    199,368.78/275,121.20 = 113,339.04/x
  3. Step 3: Cross multiply
    199,368.78x = 275,121.20 × 113,339.04
  4. Step 4: Simplify right side
    199,368.78x = 31,181,972,691.65
  5. Step 5: Solve for x
    x = 31,181,972,691.65/199,368.78
  6. Step 6: Final answer
    x = 156,403.49

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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.