Home / 101,834.91-140,542.55-56,513.20

Finding the Fourth Proportional to 101,834.91, 140,542.55 and 56,513.20

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Solution

The fourth proportional to 101,834.91, 140,542.55 and 56,513.20 is: 77,993.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,834.91 : 140,542.55 = 56,513.20 : x
  2. Step 2: Convert to fraction form
    101,834.91/140,542.55 = 56,513.20/x
  3. Step 3: Cross multiply
    101,834.91x = 140,542.55 × 56,513.20
  4. Step 4: Simplify right side
    101,834.91x = 7,942,508,954.09
  5. Step 5: Solve for x
    x = 7,942,508,954.09/101,834.91
  6. Step 6: Final answer
    x = 77,993.97

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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.