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Finding the Fourth Proportional to 68,195, 102,306.48 and 28,752.20

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Solution

The fourth proportional to 68,195, 102,306.48 and 28,752.20 is: 43,134.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,195 : 102,306.48 = 28,752.20 : x
  2. Step 2: Convert to fraction form
    68,195/102,306.48 = 28,752.20/x
  3. Step 3: Cross multiply
    68,195x = 102,306.48 × 28,752.20
  4. Step 4: Simplify right side
    68,195x = 2,941,536,374.26
  5. Step 5: Solve for x
    x = 2,941,536,374.26/68,195
  6. Step 6: Final answer
    x = 43,134.19

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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.