Home / 135,535.38-187,040.55-75,107.21

Finding the Fourth Proportional to 135,535.38, 187,040.55 and 75,107.21

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Solution

The fourth proportional to 135,535.38, 187,040.55 and 75,107.21 is: 103,648.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,535.38 : 187,040.55 = 75,107.21 : x
  2. Step 2: Convert to fraction form
    135,535.38/187,040.55 = 75,107.21/x
  3. Step 3: Cross multiply
    135,535.38x = 187,040.55 × 75,107.21
  4. Step 4: Simplify right side
    135,535.38x = 14,048,092,932.16
  5. Step 5: Solve for x
    x = 14,048,092,932.16/135,535.38
  6. Step 6: Final answer
    x = 103,648.90

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1.5x scale

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.