Home / 135,621.97-187,148.50-74,358.35

Finding the Fourth Proportional to 135,621.97, 187,148.50 and 74,358.35

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Solution

The fourth proportional to 135,621.97, 187,148.50 and 74,358.35 is: 102,609.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,621.97 : 187,148.50 = 74,358.35 : x
  2. Step 2: Convert to fraction form
    135,621.97/187,148.50 = 74,358.35/x
  3. Step 3: Cross multiply
    135,621.97x = 187,148.50 × 74,358.35
  4. Step 4: Simplify right side
    135,621.97x = 13,916,053,245.14
  5. Step 5: Solve for x
    x = 13,916,053,245.14/135,621.97
  6. Step 6: Final answer
    x = 102,609.14

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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.