Home / 209,600.88-289,322.11-124,716.12

Finding the Fourth Proportional to 209,600.88, 289,322.11 and 124,716.12

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Solution

The fourth proportional to 209,600.88, 289,322.11 and 124,716.12 is: 172,151.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,600.88 : 289,322.11 = 124,716.12 : x
  2. Step 2: Convert to fraction form
    209,600.88/289,322.11 = 124,716.12/x
  3. Step 3: Cross multiply
    209,600.88x = 289,322.11 × 124,716.12
  4. Step 4: Simplify right side
    209,600.88x = 36,083,130,989.41
  5. Step 5: Solve for x
    x = 36,083,130,989.41/209,600.88
  6. Step 6: Final answer
    x = 172,151.62

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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.