Home / 147,736.50-203,876.92-80,668.50

Finding the Fourth Proportional to 147,736.50, 203,876.92 and 80,668.50

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Solution

The fourth proportional to 147,736.50, 203,876.92 and 80,668.50 is: 111,322.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,736.50 : 203,876.92 = 80,668.50 : x
  2. Step 2: Convert to fraction form
    147,736.50/203,876.92 = 80,668.50/x
  3. Step 3: Cross multiply
    147,736.50x = 203,876.92 × 80,668.50
  4. Step 4: Simplify right side
    147,736.50x = 16,446,445,321.02
  5. Step 5: Solve for x
    x = 16,446,445,321.02/147,736.50
  6. Step 6: Final answer
    x = 111,322.83

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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.