Home / 135,140.64-202,711.20-41,645.76

Finding the Fourth Proportional to 135,140.64, 202,711.20 and 41,645.76

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Solution

The fourth proportional to 135,140.64, 202,711.20 and 41,645.76 is: 62,468.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,140.64 : 202,711.20 = 41,645.76 : x
  2. Step 2: Convert to fraction form
    135,140.64/202,711.20 = 41,645.76/x
  3. Step 3: Cross multiply
    135,140.64x = 202,711.20 × 41,645.76
  4. Step 4: Simplify right side
    135,140.64x = 8,442,061,984.51
  5. Step 5: Solve for x
    x = 8,442,061,984.51/135,140.64
  6. Step 6: Final answer
    x = 62,468.71

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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.