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Finding the Fourth Proportional to 143,353.59, 215,074.14 and 73,282.11

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Solution

The fourth proportional to 143,353.59, 215,074.14 and 73,282.11 is: 109,945.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,353.59 : 215,074.14 = 73,282.11 : x
  2. Step 2: Convert to fraction form
    143,353.59/215,074.14 = 73,282.11/x
  3. Step 3: Cross multiply
    143,353.59x = 215,074.14 × 73,282.11
  4. Step 4: Simplify right side
    143,353.59x = 15,761,086,785.64
  5. Step 5: Solve for x
    x = 15,761,086,785.64/143,353.59
  6. Step 6: Final answer
    x = 109,945.53

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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.