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Finding the Fourth Proportional to 133,633.40, 200,161.34 and 125,781.80

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Solution

The fourth proportional to 133,633.40, 200,161.34 and 125,781.80 is: 188,400.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,633.40 : 200,161.34 = 125,781.80 : x
  2. Step 2: Convert to fraction form
    133,633.40/200,161.34 = 125,781.80/x
  3. Step 3: Cross multiply
    133,633.40x = 200,161.34 × 125,781.80
  4. Step 4: Simplify right side
    133,633.40x = 25,176,653,635.61
  5. Step 5: Solve for x
    x = 25,176,653,635.61/133,633.40
  6. Step 6: Final answer
    x = 188,400.91

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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.