Home / 135,020.62-186,327.57-74,595.16

Finding the Fourth Proportional to 135,020.62, 186,327.57 and 74,595.16

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Solution

The fourth proportional to 135,020.62, 186,327.57 and 74,595.16 is: 102,940.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,020.62 : 186,327.57 = 74,595.16 : x
  2. Step 2: Convert to fraction form
    135,020.62/186,327.57 = 74,595.16/x
  3. Step 3: Cross multiply
    135,020.62x = 186,327.57 × 74,595.16
  4. Step 4: Simplify right side
    135,020.62x = 13,899,134,896.56
  5. Step 5: Solve for x
    x = 13,899,134,896.56/135,020.62
  6. Step 6: Final answer
    x = 102,940.83

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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.