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Finding the Fourth Proportional to 181,286.95, 250,216.01 and 100,742.17

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Solution

The fourth proportional to 181,286.95, 250,216.01 and 100,742.17 is: 139,046.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,286.95 : 250,216.01 = 100,742.17 : x
  2. Step 2: Convert to fraction form
    181,286.95/250,216.01 = 100,742.17/x
  3. Step 3: Cross multiply
    181,286.95x = 250,216.01 × 100,742.17
  4. Step 4: Simplify right side
    181,286.95x = 25,207,303,816.14
  5. Step 5: Solve for x
    x = 25,207,303,816.14/181,286.95
  6. Step 6: Final answer
    x = 139,046.43

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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.