Home / 135,958.20-187,569.94-100,233.16

Finding the Fourth Proportional to 135,958.20, 187,569.94 and 100,233.16

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Solution

The fourth proportional to 135,958.20, 187,569.94 and 100,233.16 is: 138,283.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,958.20 : 187,569.94 = 100,233.16 : x
  2. Step 2: Convert to fraction form
    135,958.20/187,569.94 = 100,233.16/x
  3. Step 3: Cross multiply
    135,958.20x = 187,569.94 × 100,233.16
  4. Step 4: Simplify right side
    135,958.20x = 18,800,727,807.21
  5. Step 5: Solve for x
    x = 18,800,727,807.21/135,958.20
  6. Step 6: Final answer
    x = 138,283.15

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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.