Home / 120,815.28-181,176.73-39,743.44

Finding the Fourth Proportional to 120,815.28, 181,176.73 and 39,743.44

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Solution

The fourth proportional to 120,815.28, 181,176.73 and 39,743.44 is: 59,599.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,815.28 : 181,176.73 = 39,743.44 : x
  2. Step 2: Convert to fraction form
    120,815.28/181,176.73 = 39,743.44/x
  3. Step 3: Cross multiply
    120,815.28x = 181,176.73 × 39,743.44
  4. Step 4: Simplify right side
    120,815.28x = 7,200,585,945.85
  5. Step 5: Solve for x
    x = 7,200,585,945.85/120,815.28
  6. Step 6: Final answer
    x = 59,599.96

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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.