Home / 146,318.67-219,448.85-67,421.43

Finding the Fourth Proportional to 146,318.67, 219,448.85 and 67,421.43

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Solution

The fourth proportional to 146,318.67, 219,448.85 and 67,421.43 is: 101,118.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,318.67 : 219,448.85 = 67,421.43 : x
  2. Step 2: Convert to fraction form
    146,318.67/219,448.85 = 67,421.43/x
  3. Step 3: Cross multiply
    146,318.67x = 219,448.85 × 67,421.43
  4. Step 4: Simplify right side
    146,318.67x = 14,795,554,941.75
  5. Step 5: Solve for x
    x = 14,795,554,941.75/146,318.67
  6. Step 6: Final answer
    x = 101,118.71

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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.