Home / 200,081.09-276,120.74-115,225.49

Finding the Fourth Proportional to 200,081.09, 276,120.74 and 115,225.49

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Solution

The fourth proportional to 200,081.09, 276,120.74 and 115,225.49 is: 159,016.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,081.09 : 276,120.74 = 115,225.49 : x
  2. Step 2: Convert to fraction form
    200,081.09/276,120.74 = 115,225.49/x
  3. Step 3: Cross multiply
    200,081.09x = 276,120.74 × 115,225.49
  4. Step 4: Simplify right side
    200,081.09x = 31,816,146,473.12
  5. Step 5: Solve for x
    x = 31,816,146,473.12/200,081.09
  6. Step 6: Final answer
    x = 159,016.26

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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.