Home / 218,028.08-300,880.68-131,989.04

Finding the Fourth Proportional to 218,028.08, 300,880.68 and 131,989.04

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Solution

The fourth proportional to 218,028.08, 300,880.68 and 131,989.04 is: 182,146.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,028.08 : 300,880.68 = 131,989.04 : x
  2. Step 2: Convert to fraction form
    218,028.08/300,880.68 = 131,989.04/x
  3. Step 3: Cross multiply
    218,028.08x = 300,880.68 × 131,989.04
  4. Step 4: Simplify right side
    218,028.08x = 39,712,952,107.75
  5. Step 5: Solve for x
    x = 39,712,952,107.75/218,028.08
  6. Step 6: Final answer
    x = 182,146.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.