Home / 143,379.45-214,648.61-100,536.32

Finding the Fourth Proportional to 143,379.45, 214,648.61 and 100,536.32

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Solution

The fourth proportional to 143,379.45, 214,648.61 and 100,536.32 is: 150,509.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,379.45 : 214,648.61 = 100,536.32 : x
  2. Step 2: Convert to fraction form
    143,379.45/214,648.61 = 100,536.32/x
  3. Step 3: Cross multiply
    143,379.45x = 214,648.61 × 100,536.32
  4. Step 4: Simplify right side
    143,379.45x = 21,579,981,376.46
  5. Step 5: Solve for x
    x = 21,579,981,376.46/143,379.45
  6. Step 6: Final answer
    x = 150,509.58

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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.