Home / 203,748.83-305,623.23-77,388.76

Finding the Fourth Proportional to 203,748.83, 305,623.23 and 77,388.76

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Solution

The fourth proportional to 203,748.83, 305,623.23 and 77,388.76 is: 116,083.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,748.83 : 305,623.23 = 77,388.76 : x
  2. Step 2: Convert to fraction form
    203,748.83/305,623.23 = 77,388.76/x
  3. Step 3: Cross multiply
    203,748.83x = 305,623.23 × 77,388.76
  4. Step 4: Simplify right side
    203,748.83x = 23,651,802,796.89
  5. Step 5: Solve for x
    x = 23,651,802,796.89/203,748.83
  6. Step 6: Final answer
    x = 116,083.13

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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.