Home / 200,029.28-276,109.92-115,180.16

Finding the Fourth Proportional to 200,029.28, 276,109.92 and 115,180.16

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Solution

The fourth proportional to 200,029.28, 276,109.92 and 115,180.16 is: 158,988.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,029.28 : 276,109.92 = 115,180.16 : x
  2. Step 2: Convert to fraction form
    200,029.28/276,109.92 = 115,180.16/x
  3. Step 3: Cross multiply
    200,029.28x = 276,109.92 × 115,180.16
  4. Step 4: Simplify right side
    200,029.28x = 31,802,384,763.19
  5. Step 5: Solve for x
    x = 31,802,384,763.19/200,029.28
  6. Step 6: Final answer
    x = 158,988.65

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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.