Home / 145,198.32-200,286.80-91,389.92

Finding the Fourth Proportional to 145,198.32, 200,286.80 and 91,389.92

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Solution

The fourth proportional to 145,198.32, 200,286.80 and 91,389.92 is: 126,063.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,198.32 : 200,286.80 = 91,389.92 : x
  2. Step 2: Convert to fraction form
    145,198.32/200,286.80 = 91,389.92/x
  3. Step 3: Cross multiply
    145,198.32x = 200,286.80 × 91,389.92
  4. Step 4: Simplify right side
    145,198.32x = 18,304,194,629.06
  5. Step 5: Solve for x
    x = 18,304,194,629.06/145,198.32
  6. Step 6: Final answer
    x = 126,063.41

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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.