Home / 120,719.91-181,019.12-41,812.95

Finding the Fourth Proportional to 120,719.91, 181,019.12 and 41,812.95

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Solution

The fourth proportional to 120,719.91, 181,019.12 and 41,812.95 is: 62,698.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,719.91 : 181,019.12 = 41,812.95 : x
  2. Step 2: Convert to fraction form
    120,719.91/181,019.12 = 41,812.95/x
  3. Step 3: Cross multiply
    120,719.91x = 181,019.12 × 41,812.95
  4. Step 4: Simplify right side
    120,719.91x = 7,568,943,204.54
  5. Step 5: Solve for x
    x = 7,568,943,204.54/120,719.91
  6. Step 6: Final answer
    x = 62,698.38

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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.