Home / 109,778.57-151,438.91-73,481.52

Finding the Fourth Proportional to 109,778.57, 151,438.91 and 73,481.52

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Solution

The fourth proportional to 109,778.57, 151,438.91 and 73,481.52 is: 101,367.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,778.57 : 151,438.91 = 73,481.52 : x
  2. Step 2: Convert to fraction form
    109,778.57/151,438.91 = 73,481.52/x
  3. Step 3: Cross multiply
    109,778.57x = 151,438.91 × 73,481.52
  4. Step 4: Simplify right side
    109,778.57x = 11,127,960,926.54
  5. Step 5: Solve for x
    x = 11,127,960,926.54/109,778.57
  6. Step 6: Final answer
    x = 101,367.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.