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Finding the Fourth Proportional to 147,551, 203,620.58 and 80,483

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Solution

The fourth proportional to 147,551, 203,620.58 and 80,483 is: 111,066.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,551 : 203,620.58 = 80,483 : x
  2. Step 2: Convert to fraction form
    147,551/203,620.58 = 80,483/x
  3. Step 3: Cross multiply
    147,551x = 203,620.58 × 80,483
  4. Step 4: Simplify right side
    147,551x = 16,387,995,140.14
  5. Step 5: Solve for x
    x = 16,387,995,140.14/147,551
  6. Step 6: Final answer
    x = 111,066.65

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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.