Home / 151,147.20-226,895.40-81,163.20

Finding the Fourth Proportional to 151,147.20, 226,895.40 and 81,163.20

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Solution

The fourth proportional to 151,147.20, 226,895.40 and 81,163.20 is: 121,838.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,147.20 : 226,895.40 = 81,163.20 : x
  2. Step 2: Convert to fraction form
    151,147.20/226,895.40 = 81,163.20/x
  3. Step 3: Cross multiply
    151,147.20x = 226,895.40 × 81,163.20
  4. Step 4: Simplify right side
    151,147.20x = 18,415,556,729.28
  5. Step 5: Solve for x
    x = 18,415,556,729.28/151,147.20
  6. Step 6: Final answer
    x = 121,838.56

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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.