Home / 209,966.45-289,741.22-119,309.84

Finding the Fourth Proportional to 209,966.45, 289,741.22 and 119,309.84

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Solution

The fourth proportional to 209,966.45, 289,741.22 and 119,309.84 is: 164,640.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,966.45 : 289,741.22 = 119,309.84 : x
  2. Step 2: Convert to fraction form
    209,966.45/289,741.22 = 119,309.84/x
  3. Step 3: Cross multiply
    209,966.45x = 289,741.22 × 119,309.84
  4. Step 4: Simplify right side
    209,966.45x = 34,568,976,554.35
  5. Step 5: Solve for x
    x = 34,568,976,554.35/209,966.45
  6. Step 6: Final answer
    x = 164,640.48

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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.