Home / 107,899.20-161,840.16-36,815.76

Finding the Fourth Proportional to 107,899.20, 161,840.16 and 36,815.76

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Solution

The fourth proportional to 107,899.20, 161,840.16 and 36,815.76 is: 55,220.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,899.20 : 161,840.16 = 36,815.76 : x
  2. Step 2: Convert to fraction form
    107,899.20/161,840.16 = 36,815.76/x
  3. Step 3: Cross multiply
    107,899.20x = 161,840.16 × 36,815.76
  4. Step 4: Simplify right side
    107,899.20x = 5,958,268,488.92
  5. Step 5: Solve for x
    x = 5,958,268,488.92/107,899.20
  6. Step 6: Final answer
    x = 55,220.69

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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.