Home / 115,274.64-159,067.56-85,076.28

Finding the Fourth Proportional to 115,274.64, 159,067.56 and 85,076.28

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Solution

The fourth proportional to 115,274.64, 159,067.56 and 85,076.28 is: 117,396.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,274.64 : 159,067.56 = 85,076.28 : x
  2. Step 2: Convert to fraction form
    115,274.64/159,067.56 = 85,076.28/x
  3. Step 3: Cross multiply
    115,274.64x = 159,067.56 × 85,076.28
  4. Step 4: Simplify right side
    115,274.64x = 13,532,876,273.48
  5. Step 5: Solve for x
    x = 13,532,876,273.48/115,274.64
  6. Step 6: Final answer
    x = 117,396.82

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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.