Home / 192,824.81-289,190.00-80,505.95

Finding the Fourth Proportional to 192,824.81, 289,190.00 and 80,505.95

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Solution

The fourth proportional to 192,824.81, 289,190.00 and 80,505.95 is: 120,739.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,824.81 : 289,190.00 = 80,505.95 : x
  2. Step 2: Convert to fraction form
    192,824.81/289,190.00 = 80,505.95/x
  3. Step 3: Cross multiply
    192,824.81x = 289,190.00 × 80,505.95
  4. Step 4: Simplify right side
    192,824.81x = 23,281,513,832.02
  5. Step 5: Solve for x
    x = 23,281,513,832.02/192,824.81
  6. Step 6: Final answer
    x = 120,739.21

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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.