Home / 115,772.28-159,760.29-64,791.48

Finding the Fourth Proportional to 115,772.28, 159,760.29 and 64,791.48

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Solution

The fourth proportional to 115,772.28, 159,760.29 and 64,791.48 is: 89,409.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,772.28 : 159,760.29 = 64,791.48 : x
  2. Step 2: Convert to fraction form
    115,772.28/159,760.29 = 64,791.48/x
  3. Step 3: Cross multiply
    115,772.28x = 159,760.29 × 64,791.48
  4. Step 4: Simplify right side
    115,772.28x = 10,351,105,634.33
  5. Step 5: Solve for x
    x = 10,351,105,634.33/115,772.28
  6. Step 6: Final answer
    x = 89,409.19

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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.