Home / 94,045.43-140,904.10-78,351.27

Finding the Fourth Proportional to 94,045.43, 140,904.10 and 78,351.27

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Solution

The fourth proportional to 94,045.43, 140,904.10 and 78,351.27 is: 117,390.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,045.43 : 140,904.10 = 78,351.27 : x
  2. Step 2: Convert to fraction form
    94,045.43/140,904.10 = 78,351.27/x
  3. Step 3: Cross multiply
    94,045.43x = 140,904.10 × 78,351.27
  4. Step 4: Simplify right side
    94,045.43x = 11,040,015,183.21
  5. Step 5: Solve for x
    x = 11,040,015,183.21/94,045.43
  6. Step 6: Final answer
    x = 117,390.24

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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.