Home / 219,800.88-303,327.36-129,158.85

Finding the Fourth Proportional to 219,800.88, 303,327.36 and 129,158.85

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Solution

The fourth proportional to 219,800.88, 303,327.36 and 129,158.85 is: 178,240.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,800.88 : 303,327.36 = 129,158.85 : x
  2. Step 2: Convert to fraction form
    219,800.88/303,327.36 = 129,158.85/x
  3. Step 3: Cross multiply
    219,800.88x = 303,327.36 × 129,158.85
  4. Step 4: Simplify right side
    219,800.88x = 39,177,412,991.14
  5. Step 5: Solve for x
    x = 39,177,412,991.14/219,800.88
  6. Step 6: Final answer
    x = 178,240.47

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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.