Home / 147,704.36-203,830.98-80,636.36

Finding the Fourth Proportional to 147,704.36, 203,830.98 and 80,636.36

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Solution

The fourth proportional to 147,704.36, 203,830.98 and 80,636.36 is: 111,277.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,704.36 : 203,830.98 = 80,636.36 : x
  2. Step 2: Convert to fraction form
    147,704.36/203,830.98 = 80,636.36/x
  3. Step 3: Cross multiply
    147,704.36x = 203,830.98 × 80,636.36
  4. Step 4: Simplify right side
    147,704.36x = 16,436,188,282.43
  5. Step 5: Solve for x
    x = 16,436,188,282.43/147,704.36
  6. Step 6: Final answer
    x = 111,277.61

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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.