Home / 220,093.08-303,729.69-129,452.85

Finding the Fourth Proportional to 220,093.08, 303,729.69 and 129,452.85

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Solution

The fourth proportional to 220,093.08, 303,729.69 and 129,452.85 is: 178,645.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,093.08 : 303,729.69 = 129,452.85 : x
  2. Step 2: Convert to fraction form
    220,093.08/303,729.69 = 129,452.85/x
  3. Step 3: Cross multiply
    220,093.08x = 303,729.69 × 129,452.85
  4. Step 4: Simplify right side
    220,093.08x = 39,318,674,000.12
  5. Step 5: Solve for x
    x = 39,318,674,000.12/220,093.08
  6. Step 6: Final answer
    x = 178,645.66

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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.