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Finding the Fourth Proportional to 168,170.22, 252,262.04 and 66,987.45

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Solution

The fourth proportional to 168,170.22, 252,262.04 and 66,987.45 is: 100,483.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,170.22 : 252,262.04 = 66,987.45 : x
  2. Step 2: Convert to fraction form
    168,170.22/252,262.04 = 66,987.45/x
  3. Step 3: Cross multiply
    168,170.22x = 252,262.04 × 66,987.45
  4. Step 4: Simplify right side
    168,170.22x = 16,898,390,456.46
  5. Step 5: Solve for x
    x = 16,898,390,456.46/168,170.22
  6. Step 6: Final answer
    x = 100,483.85

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1.5x scale

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.