Home / 192,823.89-289,188.64-80,505.04

Finding the Fourth Proportional to 192,823.89, 289,188.64 and 80,505.04

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Solution

The fourth proportional to 192,823.89, 289,188.64 and 80,505.04 is: 120,737.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,823.89 : 289,188.64 = 80,505.04 : x
  2. Step 2: Convert to fraction form
    192,823.89/289,188.64 = 80,505.04/x
  3. Step 3: Cross multiply
    192,823.89x = 289,188.64 × 80,505.04
  4. Step 4: Simplify right side
    192,823.89x = 23,281,141,182.28
  5. Step 5: Solve for x
    x = 23,281,141,182.28/192,823.89
  6. Step 6: Final answer
    x = 120,737.85

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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.