Home / 216,619.10-299,025.33-131,765.66

Finding the Fourth Proportional to 216,619.10, 299,025.33 and 131,765.66

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Solution

The fourth proportional to 216,619.10, 299,025.33 and 131,765.66 is: 181,891.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,619.10 : 299,025.33 = 131,765.66 : x
  2. Step 2: Convert to fraction form
    216,619.10/299,025.33 = 131,765.66/x
  3. Step 3: Cross multiply
    216,619.10x = 299,025.33 × 131,765.66
  4. Step 4: Simplify right side
    216,619.10x = 39,401,269,964.17
  5. Step 5: Solve for x
    x = 39,401,269,964.17/216,619.10
  6. Step 6: Final answer
    x = 181,891.95

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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.