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Finding the Fourth Proportional to 134,120.20, 201,180.30 and 71,912.20

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Solution

The fourth proportional to 134,120.20, 201,180.30 and 71,912.20 is: 107,868.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,120.20 : 201,180.30 = 71,912.20 : x
  2. Step 2: Convert to fraction form
    134,120.20/201,180.30 = 71,912.20/x
  3. Step 3: Cross multiply
    134,120.20x = 201,180.30 × 71,912.20
  4. Step 4: Simplify right side
    134,120.20x = 14,467,317,969.66
  5. Step 5: Solve for x
    x = 14,467,317,969.66/134,120.20
  6. Step 6: Final answer
    x = 107,868.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.