Home / 87,265.38-130,786.32-75,974.67

Finding the Fourth Proportional to 87,265.38, 130,786.32 and 75,974.67

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Solution

The fourth proportional to 87,265.38, 130,786.32 and 75,974.67 is: 113,864.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,265.38 : 130,786.32 = 75,974.67 : x
  2. Step 2: Convert to fraction form
    87,265.38/130,786.32 = 75,974.67/x
  3. Step 3: Cross multiply
    87,265.38x = 130,786.32 × 75,974.67
  4. Step 4: Simplify right side
    87,265.38x = 9,936,447,502.51
  5. Step 5: Solve for x
    x = 9,936,447,502.51/87,265.38
  6. Step 6: Final answer
    x = 113,864.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.