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Finding the Fourth Proportional to 146,014.80, 218,958.20 and 67,102.80

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Solution

The fourth proportional to 146,014.80, 218,958.20 and 67,102.80 is: 100,624.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,014.80 : 218,958.20 = 67,102.80 : x
  2. Step 2: Convert to fraction form
    146,014.80/218,958.20 = 67,102.80/x
  3. Step 3: Cross multiply
    146,014.80x = 218,958.20 × 67,102.80
  4. Step 4: Simplify right side
    146,014.80x = 14,692,708,302.96
  5. Step 5: Solve for x
    x = 14,692,708,302.96/146,014.80
  6. Step 6: Final answer
    x = 100,624.79

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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.