Home / 143,585.25-215,377.80-54,847.72

Finding the Fourth Proportional to 143,585.25, 215,377.80 and 54,847.72

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Solution

The fourth proportional to 143,585.25, 215,377.80 and 54,847.72 is: 82,271.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,585.25 : 215,377.80 = 54,847.72 : x
  2. Step 2: Convert to fraction form
    143,585.25/215,377.80 = 54,847.72/x
  3. Step 3: Cross multiply
    143,585.25x = 215,377.80 × 54,847.72
  4. Step 4: Simplify right side
    143,585.25x = 11,812,981,268.62
  5. Step 5: Solve for x
    x = 11,812,981,268.62/143,585.25
  6. Step 6: Final answer
    x = 82,271.55

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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.