Home / 90,696.53-135,358.94-88,334.57

Finding the Fourth Proportional to 90,696.53, 135,358.94 and 88,334.57

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Solution

The fourth proportional to 90,696.53, 135,358.94 and 88,334.57 is: 131,833.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,696.53 : 135,358.94 = 88,334.57 : x
  2. Step 2: Convert to fraction form
    90,696.53/135,358.94 = 88,334.57/x
  3. Step 3: Cross multiply
    90,696.53x = 135,358.94 × 88,334.57
  4. Step 4: Simplify right side
    90,696.53x = 11,956,872,642.09
  5. Step 5: Solve for x
    x = 11,956,872,642.09/90,696.53
  6. Step 6: Final answer
    x = 131,833.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.