Home / 135,164.57-186,513.97-74,726.94

Finding the Fourth Proportional to 135,164.57, 186,513.97 and 74,726.94

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Solution

The fourth proportional to 135,164.57, 186,513.97 and 74,726.94 is: 103,115.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,164.57 : 186,513.97 = 74,726.94 : x
  2. Step 2: Convert to fraction form
    135,164.57/186,513.97 = 74,726.94/x
  3. Step 3: Cross multiply
    135,164.57x = 186,513.97 × 74,726.94
  4. Step 4: Simplify right side
    135,164.57x = 13,937,618,425.62
  5. Step 5: Solve for x
    x = 13,937,618,425.62/135,164.57
  6. Step 6: Final answer
    x = 103,115.91

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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.