Home / 143,898.29-215,878.57-55,151.85

Finding the Fourth Proportional to 143,898.29, 215,878.57 and 55,151.85

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Solution

The fourth proportional to 143,898.29, 215,878.57 and 55,151.85 is: 82,739.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,898.29 : 215,878.57 = 55,151.85 : x
  2. Step 2: Convert to fraction form
    143,898.29/215,878.57 = 55,151.85/x
  3. Step 3: Cross multiply
    143,898.29x = 215,878.57 × 55,151.85
  4. Step 4: Simplify right side
    143,898.29x = 11,906,103,182.52
  5. Step 5: Solve for x
    x = 11,906,103,182.52/143,898.29
  6. Step 6: Final answer
    x = 82,739.71

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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.