Home / 135,480.07-203,346.20-68,970

Finding the Fourth Proportional to 135,480.07, 203,346.20 and 68,970

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Solution

The fourth proportional to 135,480.07, 203,346.20 and 68,970 is: 103,519.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,480.07 : 203,346.20 = 68,970 : x
  2. Step 2: Convert to fraction form
    135,480.07/203,346.20 = 68,970/x
  3. Step 3: Cross multiply
    135,480.07x = 203,346.20 × 68,970
  4. Step 4: Simplify right side
    135,480.07x = 14,024,787,414
  5. Step 5: Solve for x
    x = 14,024,787,414/135,480.07
  6. Step 6: Final answer
    x = 103,519.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.