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Finding the Fourth Proportional to 147,903.75, 204,107.18 and 80,835.75

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Solution

The fourth proportional to 147,903.75, 204,107.18 and 80,835.75 is: 111,553.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,903.75 : 204,107.18 = 80,835.75 : x
  2. Step 2: Convert to fraction form
    147,903.75/204,107.18 = 80,835.75/x
  3. Step 3: Cross multiply
    147,903.75x = 204,107.18 × 80,835.75
  4. Step 4: Simplify right side
    147,903.75x = 16,499,156,571.51
  5. Step 5: Solve for x
    x = 16,499,156,571.51/147,903.75
  6. Step 6: Final answer
    x = 111,553.34

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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.