Home / 200,193.12-276,242.40-115,305.12

Finding the Fourth Proportional to 200,193.12, 276,242.40 and 115,305.12

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Solution

The fourth proportional to 200,193.12, 276,242.40 and 115,305.12 is: 159,107.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,193.12 : 276,242.40 = 115,305.12 : x
  2. Step 2: Convert to fraction form
    200,193.12/276,242.40 = 115,305.12/x
  3. Step 3: Cross multiply
    200,193.12x = 276,242.40 × 115,305.12
  4. Step 4: Simplify right side
    200,193.12x = 31,852,163,081.09
  5. Step 5: Solve for x
    x = 31,852,163,081.09/200,193.12
  6. Step 6: Final answer
    x = 159,107.18

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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.