Home / 204,823.14-307,023.60-78,428.85

Finding the Fourth Proportional to 204,823.14, 307,023.60 and 78,428.85

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Solution

The fourth proportional to 204,823.14, 307,023.60 and 78,428.85 is: 117,562.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,823.14 : 307,023.60 = 78,428.85 : x
  2. Step 2: Convert to fraction form
    204,823.14/307,023.60 = 78,428.85/x
  3. Step 3: Cross multiply
    204,823.14x = 307,023.60 × 78,428.85
  4. Step 4: Simplify right side
    204,823.14x = 24,079,507,870.86
  5. Step 5: Solve for x
    x = 24,079,507,870.86/204,823.14
  6. Step 6: Final answer
    x = 117,562.44

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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.