Home / 135,914.11-187,563.78-74,662.88

Finding the Fourth Proportional to 135,914.11, 187,563.78 and 74,662.88

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Solution

The fourth proportional to 135,914.11, 187,563.78 and 74,662.88 is: 103,036.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,914.11 : 187,563.78 = 74,662.88 : x
  2. Step 2: Convert to fraction form
    135,914.11/187,563.78 = 74,662.88/x
  3. Step 3: Cross multiply
    135,914.11x = 187,563.78 × 74,662.88
  4. Step 4: Simplify right side
    135,914.11x = 14,004,051,735.28
  5. Step 5: Solve for x
    x = 14,004,051,735.28/135,914.11
  6. Step 6: Final answer
    x = 103,036.04

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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.