Home / 289,061.10-398,904.75-161,736.75

Finding the Fourth Proportional to 289,061.10, 398,904.75 and 161,736.75

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Solution

The fourth proportional to 289,061.10, 398,904.75 and 161,736.75 is: 223,196.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,061.10 : 398,904.75 = 161,736.75 : x
  2. Step 2: Convert to fraction form
    289,061.10/398,904.75 = 161,736.75/x
  3. Step 3: Cross multiply
    289,061.10x = 398,904.75 × 161,736.75
  4. Step 4: Simplify right side
    289,061.10x = 64,517,557,824.56
  5. Step 5: Solve for x
    x = 64,517,557,824.56/289,061.10
  6. Step 6: Final answer
    x = 223,196.96

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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.