Home / 168,081.60-252,122.40-89,155.20

Finding the Fourth Proportional to 168,081.60, 252,122.40 and 89,155.20

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Solution

The fourth proportional to 168,081.60, 252,122.40 and 89,155.20 is: 133,732.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,081.60 : 252,122.40 = 89,155.20 : x
  2. Step 2: Convert to fraction form
    168,081.60/252,122.40 = 89,155.20/x
  3. Step 3: Cross multiply
    168,081.60x = 252,122.40 × 89,155.20
  4. Step 4: Simplify right side
    168,081.60x = 22,478,022,996.48
  5. Step 5: Solve for x
    x = 22,478,022,996.48/168,081.60
  6. Step 6: Final answer
    x = 133,732.80

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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.