Home / 135,198.89-186,571.04-74,767.92

Finding the Fourth Proportional to 135,198.89, 186,571.04 and 74,767.92

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Solution

The fourth proportional to 135,198.89, 186,571.04 and 74,767.92 is: 103,177.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,198.89 : 186,571.04 = 74,767.92 : x
  2. Step 2: Convert to fraction form
    135,198.89/186,571.04 = 74,767.92/x
  3. Step 3: Cross multiply
    135,198.89x = 186,571.04 × 74,767.92
  4. Step 4: Simplify right side
    135,198.89x = 13,949,528,219.20
  5. Step 5: Solve for x
    x = 13,949,528,219.20/135,198.89
  6. Step 6: Final answer
    x = 103,177.83

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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.