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Finding the Fourth Proportional to 168,488.61, 252,728.05 and 68,624.11

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Solution

The fourth proportional to 168,488.61, 252,728.05 and 68,624.11 is: 102,934.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,488.61 : 252,728.05 = 68,624.11 : x
  2. Step 2: Convert to fraction form
    168,488.61/252,728.05 = 68,624.11/x
  3. Step 3: Cross multiply
    168,488.61x = 252,728.05 × 68,624.11
  4. Step 4: Simplify right side
    168,488.61x = 17,343,237,776.31
  5. Step 5: Solve for x
    x = 17,343,237,776.31/168,488.61
  6. Step 6: Final answer
    x = 102,934.19

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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.