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Finding the Fourth Proportional to 168,765.78, 253,273.25 and 80,019.62

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Solution

The fourth proportional to 168,765.78, 253,273.25 and 80,019.62 is: 120,088.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,765.78 : 253,273.25 = 80,019.62 : x
  2. Step 2: Convert to fraction form
    168,765.78/253,273.25 = 80,019.62/x
  3. Step 3: Cross multiply
    168,765.78x = 253,273.25 × 80,019.62
  4. Step 4: Simplify right side
    168,765.78x = 20,266,829,221.17
  5. Step 5: Solve for x
    x = 20,266,829,221.17/168,765.78
  6. Step 6: Final answer
    x = 120,088.50

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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.