Home / 102,351.78-141,304.05-68,417.74

Finding the Fourth Proportional to 102,351.78, 141,304.05 and 68,417.74

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Solution

The fourth proportional to 102,351.78, 141,304.05 and 68,417.74 is: 94,455.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,351.78 : 141,304.05 = 68,417.74 : x
  2. Step 2: Convert to fraction form
    102,351.78/141,304.05 = 68,417.74/x
  3. Step 3: Cross multiply
    102,351.78x = 141,304.05 × 68,417.74
  4. Step 4: Simplify right side
    102,351.78x = 9,667,703,753.85
  5. Step 5: Solve for x
    x = 9,667,703,753.85/102,351.78
  6. Step 6: Final answer
    x = 94,455.65

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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.