Home / 135,004.94-186,299.10-80,618.48

Finding the Fourth Proportional to 135,004.94, 186,299.10 and 80,618.48

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Solution

The fourth proportional to 135,004.94, 186,299.10 and 80,618.48 is: 111,248.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,004.94 : 186,299.10 = 80,618.48 : x
  2. Step 2: Convert to fraction form
    135,004.94/186,299.10 = 80,618.48/x
  3. Step 3: Cross multiply
    135,004.94x = 186,299.10 × 80,618.48
  4. Step 4: Simplify right side
    135,004.94x = 15,019,150,733.12
  5. Step 5: Solve for x
    x = 15,019,150,733.12/135,004.94
  6. Step 6: Final answer
    x = 111,248.90

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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.