Home / 148,687.07-205,188.37-80,704.04

Finding the Fourth Proportional to 148,687.07, 205,188.37 and 80,704.04

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Solution

The fourth proportional to 148,687.07, 205,188.37 and 80,704.04 is: 111,371.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,687.07 : 205,188.37 = 80,704.04 : x
  2. Step 2: Convert to fraction form
    148,687.07/205,188.37 = 80,704.04/x
  3. Step 3: Cross multiply
    148,687.07x = 205,188.37 × 80,704.04
  4. Step 4: Simplify right side
    148,687.07x = 16,559,529,192.31
  5. Step 5: Solve for x
    x = 16,559,529,192.31/148,687.07
  6. Step 6: Final answer
    x = 111,371.69

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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.