Home / 209,465.16-289,083.20-123,451.84

Finding the Fourth Proportional to 209,465.16, 289,083.20 and 123,451.84

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Solution

The fourth proportional to 209,465.16, 289,083.20 and 123,451.84 is: 170,376.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,465.16 : 289,083.20 = 123,451.84 : x
  2. Step 2: Convert to fraction form
    209,465.16/289,083.20 = 123,451.84/x
  3. Step 3: Cross multiply
    209,465.16x = 289,083.20 × 123,451.84
  4. Step 4: Simplify right side
    209,465.16x = 35,687,853,535.54
  5. Step 5: Solve for x
    x = 35,687,853,535.54/209,465.16
  6. Step 6: Final answer
    x = 170,376.08

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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.