Home / 74,202.45-102,414.85-68,224.65

Finding the Fourth Proportional to 74,202.45, 102,414.85 and 68,224.65

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Solution

The fourth proportional to 74,202.45, 102,414.85 and 68,224.65 is: 94,164.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,202.45 : 102,414.85 = 68,224.65 : x
  2. Step 2: Convert to fraction form
    74,202.45/102,414.85 = 68,224.65/x
  3. Step 3: Cross multiply
    74,202.45x = 102,414.85 × 68,224.65
  4. Step 4: Simplify right side
    74,202.45x = 6,987,216,741.44
  5. Step 5: Solve for x
    x = 6,987,216,741.44/74,202.45
  6. Step 6: Final answer
    x = 94,164.24

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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.