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Finding the Fourth Proportional to 102,801.70, 154,105.35 and 60,714.10

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Solution

The fourth proportional to 102,801.70, 154,105.35 and 60,714.10 is: 91,013.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,801.70 : 154,105.35 = 60,714.10 : x
  2. Step 2: Convert to fraction form
    102,801.70/154,105.35 = 60,714.10/x
  3. Step 3: Cross multiply
    102,801.70x = 154,105.35 × 60,714.10
  4. Step 4: Simplify right side
    102,801.70x = 9,356,367,630.44
  5. Step 5: Solve for x
    x = 9,356,367,630.44/102,801.70
  6. Step 6: Final answer
    x = 91,013.74

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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.