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Finding the Fourth Proportional to 147,735, 203,874.57 and 80,667

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Solution

The fourth proportional to 147,735, 203,874.57 and 80,667 is: 111,320.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,735 : 203,874.57 = 80,667 : x
  2. Step 2: Convert to fraction form
    147,735/203,874.57 = 80,667/x
  3. Step 3: Cross multiply
    147,735x = 203,874.57 × 80,667
  4. Step 4: Simplify right side
    147,735x = 16,445,949,938.19
  5. Step 5: Solve for x
    x = 16,445,949,938.19/147,735
  6. Step 6: Final answer
    x = 111,320.61

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1.5x scale

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.