Home / 209,698.29-289,446.89-142,669.17

Finding the Fourth Proportional to 209,698.29, 289,446.89 and 142,669.17

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Solution

The fourth proportional to 209,698.29, 289,446.89 and 142,669.17 is: 196,926.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,698.29 : 289,446.89 = 142,669.17 : x
  2. Step 2: Convert to fraction form
    209,698.29/289,446.89 = 142,669.17/x
  3. Step 3: Cross multiply
    209,698.29x = 289,446.89 × 142,669.17
  4. Step 4: Simplify right side
    209,698.29x = 41,295,146,842.04
  5. Step 5: Solve for x
    x = 41,295,146,842.04/209,698.29
  6. Step 6: Final answer
    x = 196,926.48

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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.