Home / 115,286.09-159,067.71-69,963.05

Finding the Fourth Proportional to 115,286.09, 159,067.71 and 69,963.05

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Solution

The fourth proportional to 115,286.09, 159,067.71 and 69,963.05 is: 96,532.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,286.09 : 159,067.71 = 69,963.05 : x
  2. Step 2: Convert to fraction form
    115,286.09/159,067.71 = 69,963.05/x
  3. Step 3: Cross multiply
    115,286.09x = 159,067.71 × 69,963.05
  4. Step 4: Simplify right side
    115,286.09x = 11,128,862,545.78
  5. Step 5: Solve for x
    x = 11,128,862,545.78/115,286.09
  6. Step 6: Final answer
    x = 96,532.57

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1.5x scale

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.