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Finding the Fourth Proportional to 102,863.88, 154,168.68 and 60,701.28

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Solution

The fourth proportional to 102,863.88, 154,168.68 and 60,701.28 is: 90,976.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,863.88 : 154,168.68 = 60,701.28 : x
  2. Step 2: Convert to fraction form
    102,863.88/154,168.68 = 60,701.28/x
  3. Step 3: Cross multiply
    102,863.88x = 154,168.68 × 60,701.28
  4. Step 4: Simplify right side
    102,863.88x = 9,358,236,211.91
  5. Step 5: Solve for x
    x = 9,358,236,211.91/102,863.88
  6. Step 6: Final answer
    x = 90,976.89

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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.