Home / 120,815.60-181,050.60-88,977.20

Finding the Fourth Proportional to 120,815.60, 181,050.60 and 88,977.20

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Solution

The fourth proportional to 120,815.60, 181,050.60 and 88,977.20 is: 133,338.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,815.60 : 181,050.60 = 88,977.20 : x
  2. Step 2: Convert to fraction form
    120,815.60/181,050.60 = 88,977.20/x
  3. Step 3: Cross multiply
    120,815.60x = 181,050.60 × 88,977.20
  4. Step 4: Simplify right side
    120,815.60x = 16,109,375,446.32
  5. Step 5: Solve for x
    x = 16,109,375,446.32/120,815.60
  6. Step 6: Final answer
    x = 133,338.54

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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.