Home / 204,848.91-307,262.43-78,549.66

Finding the Fourth Proportional to 204,848.91, 307,262.43 and 78,549.66

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Solution

The fourth proportional to 204,848.91, 307,262.43 and 78,549.66 is: 117,820.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,848.91 : 307,262.43 = 78,549.66 : x
  2. Step 2: Convert to fraction form
    204,848.91/307,262.43 = 78,549.66/x
  3. Step 3: Cross multiply
    204,848.91x = 307,262.43 × 78,549.66
  4. Step 4: Simplify right side
    204,848.91x = 24,135,359,407.27
  5. Step 5: Solve for x
    x = 24,135,359,407.27/204,848.91
  6. Step 6: Final answer
    x = 117,820.30

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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.