Home / 143,112.64-214,744.56-103,993.12

Finding the Fourth Proportional to 143,112.64, 214,744.56 and 103,993.12

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Solution

The fourth proportional to 143,112.64, 214,744.56 and 103,993.12 is: 156,044.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,112.64 : 214,744.56 = 103,993.12 : x
  2. Step 2: Convert to fraction form
    143,112.64/214,744.56 = 103,993.12/x
  3. Step 3: Cross multiply
    143,112.64x = 214,744.56 × 103,993.12
  4. Step 4: Simplify right side
    143,112.64x = 22,331,956,797.43
  5. Step 5: Solve for x
    x = 22,331,956,797.43/143,112.64
  6. Step 6: Final answer
    x = 156,044.61

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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.