Home / 146,919.33-220,193.10-72,021.87

Finding the Fourth Proportional to 146,919.33, 220,193.10 and 72,021.87

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Solution

The fourth proportional to 146,919.33, 220,193.10 and 72,021.87 is: 107,941.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,919.33 : 220,193.10 = 72,021.87 : x
  2. Step 2: Convert to fraction form
    146,919.33/220,193.10 = 72,021.87/x
  3. Step 3: Cross multiply
    146,919.33x = 220,193.10 × 72,021.87
  4. Step 4: Simplify right side
    146,919.33x = 15,858,718,823.10
  5. Step 5: Solve for x
    x = 15,858,718,823.10/146,919.33
  6. Step 6: Final answer
    x = 107,941.68

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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.