Home / 102,435.92-141,311.31-68,452.78

Finding the Fourth Proportional to 102,435.92, 141,311.31 and 68,452.78

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Solution

The fourth proportional to 102,435.92, 141,311.31 and 68,452.78 is: 94,431.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,435.92 : 141,311.31 = 68,452.78 : x
  2. Step 2: Convert to fraction form
    102,435.92/141,311.31 = 68,452.78/x
  3. Step 3: Cross multiply
    102,435.92x = 141,311.31 × 68,452.78
  4. Step 4: Simplify right side
    102,435.92x = 9,673,151,308.39
  5. Step 5: Solve for x
    x = 9,673,151,308.39/102,435.92
  6. Step 6: Final answer
    x = 94,431.24

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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.