Home / 199,329.06-299,111.43-80,991.30

Finding the Fourth Proportional to 199,329.06, 299,111.43 and 80,991.30

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Solution

The fourth proportional to 199,329.06, 299,111.43 and 80,991.30 is: 121,534.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,329.06 : 299,111.43 = 80,991.30 : x
  2. Step 2: Convert to fraction form
    199,329.06/299,111.43 = 80,991.30/x
  3. Step 3: Cross multiply
    199,329.06x = 299,111.43 × 80,991.30
  4. Step 4: Simplify right side
    199,329.06x = 24,225,423,560.56
  5. Step 5: Solve for x
    x = 24,225,423,560.56/199,329.06
  6. Step 6: Final answer
    x = 121,534.83

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1.5x scale

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.