Home / 209,694.08-289,406.39-123,677.42

Finding the Fourth Proportional to 209,694.08, 289,406.39 and 123,677.42

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Solution

The fourth proportional to 209,694.08, 289,406.39 and 123,677.42 is: 170,691.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,694.08 : 289,406.39 = 123,677.42 : x
  2. Step 2: Convert to fraction form
    209,694.08/289,406.39 = 123,677.42/x
  3. Step 3: Cross multiply
    209,694.08x = 289,406.39 × 123,677.42
  4. Step 4: Simplify right side
    209,694.08x = 35,793,033,581.29
  5. Step 5: Solve for x
    x = 35,793,033,581.29/209,694.08
  6. Step 6: Final answer
    x = 170,691.67

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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.