Home / 115,824.44-159,862.74-70,517

Finding the Fourth Proportional to 115,824.44, 159,862.74 and 70,517

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Solution

The fourth proportional to 115,824.44, 159,862.74 and 70,517 is: 97,328.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,824.44 : 159,862.74 = 70,517 : x
  2. Step 2: Convert to fraction form
    115,824.44/159,862.74 = 70,517/x
  3. Step 3: Cross multiply
    115,824.44x = 159,862.74 × 70,517
  4. Step 4: Simplify right side
    115,824.44x = 11,273,040,836.58
  5. Step 5: Solve for x
    x = 11,273,040,836.58/115,824.44
  6. Step 6: Final answer
    x = 97,328.69

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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.