Home / 209,599.65-289,254.11-114,112.53

Finding the Fourth Proportional to 209,599.65, 289,254.11 and 114,112.53

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Solution

The fourth proportional to 209,599.65, 289,254.11 and 114,112.53 is: 157,478.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,599.65 : 289,254.11 = 114,112.53 : x
  2. Step 2: Convert to fraction form
    209,599.65/289,254.11 = 114,112.53/x
  3. Step 3: Cross multiply
    209,599.65x = 289,254.11 × 114,112.53
  4. Step 4: Simplify right side
    209,599.65x = 33,007,517,734.44
  5. Step 5: Solve for x
    x = 33,007,517,734.44/209,599.65
  6. Step 6: Final answer
    x = 157,478.88

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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.