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Finding the Fourth Proportional to 148,550, 204,999.09 and 80,566.94

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Solution

The fourth proportional to 148,550, 204,999.09 and 80,566.94 is: 111,182.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,550 : 204,999.09 = 80,566.94 : x
  2. Step 2: Convert to fraction form
    148,550/204,999.09 = 80,566.94/x
  3. Step 3: Cross multiply
    148,550x = 204,999.09 × 80,566.94
  4. Step 4: Simplify right side
    148,550x = 16,516,149,384.08
  5. Step 5: Solve for x
    x = 16,516,149,384.08/148,550
  6. Step 6: Final answer
    x = 111,182.43

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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.