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Finding the Fourth Proportional to 135,571.80, 203,472.90 and 109,306.20

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Solution

The fourth proportional to 135,571.80, 203,472.90 and 109,306.20 is: 164,052.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,571.80 : 203,472.90 = 109,306.20 : x
  2. Step 2: Convert to fraction form
    135,571.80/203,472.90 = 109,306.20/x
  3. Step 3: Cross multiply
    135,571.80x = 203,472.90 × 109,306.20
  4. Step 4: Simplify right side
    135,571.80x = 22,240,849,501.98
  5. Step 5: Solve for x
    x = 22,240,849,501.98/135,571.80
  6. Step 6: Final answer
    x = 164,052.18

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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.