Home / 168,754.20-253,131.30-89,827.80

Finding the Fourth Proportional to 168,754.20, 253,131.30 and 89,827.80

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Solution

The fourth proportional to 168,754.20, 253,131.30 and 89,827.80 is: 134,741.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,754.20 : 253,131.30 = 89,827.80 : x
  2. Step 2: Convert to fraction form
    168,754.20/253,131.30 = 89,827.80/x
  3. Step 3: Cross multiply
    168,754.20x = 253,131.30 × 89,827.80
  4. Step 4: Simplify right side
    168,754.20x = 22,738,227,790.14
  5. Step 5: Solve for x
    x = 22,738,227,790.14/168,754.20
  6. Step 6: Final answer
    x = 134,741.70

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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.