Home / 168,981.90-253,503.45-80,234.70

Finding the Fourth Proportional to 168,981.90, 253,503.45 and 80,234.70

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Solution

The fourth proportional to 168,981.90, 253,503.45 and 80,234.70 is: 120,366.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,981.90 : 253,503.45 = 80,234.70 : x
  2. Step 2: Convert to fraction form
    168,981.90/253,503.45 = 80,234.70/x
  3. Step 3: Cross multiply
    168,981.90x = 253,503.45 × 80,234.70
  4. Step 4: Simplify right side
    168,981.90x = 20,339,773,259.72
  5. Step 5: Solve for x
    x = 20,339,773,259.72/168,981.90
  6. Step 6: Final answer
    x = 120,366.58

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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.