Home / 135,340.62-186,744.11-74,908.41

Finding the Fourth Proportional to 135,340.62, 186,744.11 and 74,908.41

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Solution

The fourth proportional to 135,340.62, 186,744.11 and 74,908.41 is: 103,359.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,340.62 : 186,744.11 = 74,908.41 : x
  2. Step 2: Convert to fraction form
    135,340.62/186,744.11 = 74,908.41/x
  3. Step 3: Cross multiply
    135,340.62x = 186,744.11 × 74,908.41
  4. Step 4: Simplify right side
    135,340.62x = 13,988,704,356.97
  5. Step 5: Solve for x
    x = 13,988,704,356.97/135,340.62
  6. Step 6: Final answer
    x = 103,359.25

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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.