Home / 143,749.50-215,339.03-67,743.96

Finding the Fourth Proportional to 143,749.50, 215,339.03 and 67,743.96

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Solution

The fourth proportional to 143,749.50, 215,339.03 and 67,743.96 is: 101,481.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,749.50 : 215,339.03 = 67,743.96 : x
  2. Step 2: Convert to fraction form
    143,749.50/215,339.03 = 67,743.96/x
  3. Step 3: Cross multiply
    143,749.50x = 215,339.03 × 67,743.96
  4. Step 4: Simplify right side
    143,749.50x = 14,587,918,634.76
  5. Step 5: Solve for x
    x = 14,587,918,634.76/143,749.50
  6. Step 6: Final answer
    x = 101,481.53

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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.