Home / 209,112.40-288,553.42-123,066.24

Finding the Fourth Proportional to 209,112.40, 288,553.42 and 123,066.24

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Solution

The fourth proportional to 209,112.40, 288,553.42 and 123,066.24 is: 169,818.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,112.40 : 288,553.42 = 123,066.24 : x
  2. Step 2: Convert to fraction form
    209,112.40/288,553.42 = 123,066.24/x
  3. Step 3: Cross multiply
    209,112.40x = 288,553.42 × 123,066.24
  4. Step 4: Simplify right side
    209,112.40x = 35,511,183,510.30
  5. Step 5: Solve for x
    x = 35,511,183,510.30/209,112.40
  6. Step 6: Final answer
    x = 169,818.64

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1.5x scale

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.