Home / 107,387.20-161,081.37-36,310.30

Finding the Fourth Proportional to 107,387.20, 161,081.37 and 36,310.30

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Solution

The fourth proportional to 107,387.20, 161,081.37 and 36,310.30 is: 54,465.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,387.20 : 161,081.37 = 36,310.30 : x
  2. Step 2: Convert to fraction form
    107,387.20/161,081.37 = 36,310.30/x
  3. Step 3: Cross multiply
    107,387.20x = 161,081.37 × 36,310.30
  4. Step 4: Simplify right side
    107,387.20x = 5,848,912,869.11
  5. Step 5: Solve for x
    x = 5,848,912,869.11/107,387.20
  6. Step 6: Final answer
    x = 54,465.64

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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.