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Finding the Fourth Proportional to 143,144.40, 214,716.60 and 73,160.40

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Solution

The fourth proportional to 143,144.40, 214,716.60 and 73,160.40 is: 109,740.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,144.40 : 214,716.60 = 73,160.40 : x
  2. Step 2: Convert to fraction form
    143,144.40/214,716.60 = 73,160.40/x
  3. Step 3: Cross multiply
    143,144.40x = 214,716.60 × 73,160.40
  4. Step 4: Simplify right side
    143,144.40x = 15,708,752,342.64
  5. Step 5: Solve for x
    x = 15,708,752,342.64/143,144.40
  6. Step 6: Final answer
    x = 109,740.60

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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.