Home / 143,614.10-215,453.13-43,782.06

Finding the Fourth Proportional to 143,614.10, 215,453.13 and 43,782.06

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Solution

The fourth proportional to 143,614.10, 215,453.13 and 43,782.06 is: 65,682.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,614.10 : 215,453.13 = 43,782.06 : x
  2. Step 2: Convert to fraction form
    143,614.10/215,453.13 = 43,782.06/x
  3. Step 3: Cross multiply
    143,614.10x = 215,453.13 × 43,782.06
  4. Step 4: Simplify right side
    143,614.10x = 9,432,981,864.85
  5. Step 5: Solve for x
    x = 9,432,981,864.85/143,614.10
  6. Step 6: Final answer
    x = 65,682.84

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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.