Home / 143,251.42-214,821.78-48,456.40

Finding the Fourth Proportional to 143,251.42, 214,821.78 and 48,456.40

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Solution

The fourth proportional to 143,251.42, 214,821.78 and 48,456.40 is: 72,665.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,251.42 : 214,821.78 = 48,456.40 : x
  2. Step 2: Convert to fraction form
    143,251.42/214,821.78 = 48,456.40/x
  3. Step 3: Cross multiply
    143,251.42x = 214,821.78 × 48,456.40
  4. Step 4: Simplify right side
    143,251.42x = 10,409,490,100.39
  5. Step 5: Solve for x
    x = 10,409,490,100.39/143,251.42
  6. Step 6: Final answer
    x = 72,665.88

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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.