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Finding the Fourth Proportional to 143,387.96, 214,661.32 and 100,544.84

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Solution

The fourth proportional to 143,387.96, 214,661.32 and 100,544.84 is: 150,522.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,387.96 : 214,661.32 = 100,544.84 : x
  2. Step 2: Convert to fraction form
    143,387.96/214,661.32 = 100,544.84/x
  3. Step 3: Cross multiply
    143,387.96x = 214,661.32 × 100,544.84
  4. Step 4: Simplify right side
    143,387.96x = 21,583,088,073.59
  5. Step 5: Solve for x
    x = 21,583,088,073.59/143,387.96
  6. Step 6: Final answer
    x = 150,522.32

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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.