Home / 90,839.07-135,677.19-82,277.71

Finding the Fourth Proportional to 90,839.07, 135,677.19 and 82,277.71

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Solution

The fourth proportional to 90,839.07, 135,677.19 and 82,277.71 is: 122,889.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,839.07 : 135,677.19 = 82,277.71 : x
  2. Step 2: Convert to fraction form
    90,839.07/135,677.19 = 82,277.71/x
  3. Step 3: Cross multiply
    90,839.07x = 135,677.19 × 82,277.71
  4. Step 4: Simplify right side
    90,839.07x = 11,163,208,461.78
  5. Step 5: Solve for x
    x = 11,163,208,461.78/90,839.07
  6. Step 6: Final answer
    x = 122,889.95

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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.