Home / 135,614.66-203,419.28-42,120.14

Finding the Fourth Proportional to 135,614.66, 203,419.28 and 42,120.14

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Solution

The fourth proportional to 135,614.66, 203,419.28 and 42,120.14 is: 63,179.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,614.66 : 203,419.28 = 42,120.14 : x
  2. Step 2: Convert to fraction form
    135,614.66/203,419.28 = 42,120.14/x
  3. Step 3: Cross multiply
    135,614.66x = 203,419.28 × 42,120.14
  4. Step 4: Simplify right side
    135,614.66x = 8,568,047,640.50
  5. Step 5: Solve for x
    x = 8,568,047,640.50/135,614.66
  6. Step 6: Final answer
    x = 63,179.36

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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.