Home / 143,814.14-215,721.21-43,974.32

Finding the Fourth Proportional to 143,814.14, 215,721.21 and 43,974.32

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Solution

The fourth proportional to 143,814.14, 215,721.21 and 43,974.32 is: 65,961.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,814.14 : 215,721.21 = 43,974.32 : x
  2. Step 2: Convert to fraction form
    143,814.14/215,721.21 = 43,974.32/x
  3. Step 3: Cross multiply
    143,814.14x = 215,721.21 × 43,974.32
  4. Step 4: Simplify right side
    143,814.14x = 9,486,192,440.72
  5. Step 5: Solve for x
    x = 9,486,192,440.72/143,814.14
  6. Step 6: Final answer
    x = 65,961.47

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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.