Home / 139,414.91-209,121.95-39,575.19

Finding the Fourth Proportional to 139,414.91, 209,121.95 and 39,575.19

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Solution

The fourth proportional to 139,414.91, 209,121.95 and 39,575.19 is: 59,362.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,414.91 : 209,121.95 = 39,575.19 : x
  2. Step 2: Convert to fraction form
    139,414.91/209,121.95 = 39,575.19/x
  3. Step 3: Cross multiply
    139,414.91x = 209,121.95 × 39,575.19
  4. Step 4: Simplify right side
    139,414.91x = 8,276,040,706.54
  5. Step 5: Solve for x
    x = 8,276,040,706.54/139,414.91
  6. Step 6: Final answer
    x = 59,362.67

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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.