Home / 135,902.36-187,546.38-75,474

Finding the Fourth Proportional to 135,902.36, 187,546.38 and 75,474

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Solution

The fourth proportional to 135,902.36, 187,546.38 and 75,474 is: 104,154.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,902.36 : 187,546.38 = 75,474 : x
  2. Step 2: Convert to fraction form
    135,902.36/187,546.38 = 75,474/x
  3. Step 3: Cross multiply
    135,902.36x = 187,546.38 × 75,474
  4. Step 4: Simplify right side
    135,902.36x = 14,154,875,484.12
  5. Step 5: Solve for x
    x = 14,154,875,484.12/135,902.36
  6. Step 6: Final answer
    x = 104,154.74

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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.