Home / 133,690.35-200,400.51-83,805.41

Finding the Fourth Proportional to 133,690.35, 200,400.51 and 83,805.41

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Solution

The fourth proportional to 133,690.35, 200,400.51 and 83,805.41 is: 125,623.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,690.35 : 200,400.51 = 83,805.41 : x
  2. Step 2: Convert to fraction form
    133,690.35/200,400.51 = 83,805.41/x
  3. Step 3: Cross multiply
    133,690.35x = 200,400.51 × 83,805.41
  4. Step 4: Simplify right side
    133,690.35x = 16,794,646,449.30
  5. Step 5: Solve for x
    x = 16,794,646,449.30/133,690.35
  6. Step 6: Final answer
    x = 125,623.48

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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.