Home / 168,011.10-252,122.13-68,171.70

Finding the Fourth Proportional to 168,011.10, 252,122.13 and 68,171.70

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Solution

The fourth proportional to 168,011.10, 252,122.13 and 68,171.70 is: 102,300.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,011.10 : 252,122.13 = 68,171.70 : x
  2. Step 2: Convert to fraction form
    168,011.10/252,122.13 = 68,171.70/x
  3. Step 3: Cross multiply
    168,011.10x = 252,122.13 × 68,171.70
  4. Step 4: Simplify right side
    168,011.10x = 17,187,594,209.72
  5. Step 5: Solve for x
    x = 17,187,594,209.72/168,011.10
  6. Step 6: Final answer
    x = 102,300.35

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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.