Home / 216,619.05-299,025.24-131,765.61

Finding the Fourth Proportional to 216,619.05, 299,025.24 and 131,765.61

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Solution

The fourth proportional to 216,619.05, 299,025.24 and 131,765.61 is: 181,891.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,619.05 : 299,025.24 = 131,765.61 : x
  2. Step 2: Convert to fraction form
    216,619.05/299,025.24 = 131,765.61/x
  3. Step 3: Cross multiply
    216,619.05x = 299,025.24 × 131,765.61
  4. Step 4: Simplify right side
    216,619.05x = 39,401,243,154.00
  5. Step 5: Solve for x
    x = 39,401,243,154.00/216,619.05
  6. Step 6: Final answer
    x = 181,891.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.