Home / 200,080.98-276,120.59-115,225.38

Finding the Fourth Proportional to 200,080.98, 276,120.59 and 115,225.38

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Solution

The fourth proportional to 200,080.98, 276,120.59 and 115,225.38 is: 159,016.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,080.98 : 276,120.59 = 115,225.38 : x
  2. Step 2: Convert to fraction form
    200,080.98/276,120.59 = 115,225.38/x
  3. Step 3: Cross multiply
    200,080.98x = 276,120.59 × 115,225.38
  4. Step 4: Simplify right side
    200,080.98x = 31,816,099,908.57
  5. Step 5: Solve for x
    x = 31,816,099,908.57/200,080.98
  6. Step 6: Final answer
    x = 159,016.11

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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.