Home / 100,222.64-138,305.68-54,900.24

Finding the Fourth Proportional to 100,222.64, 138,305.68 and 54,900.24

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Solution

The fourth proportional to 100,222.64, 138,305.68 and 54,900.24 is: 75,761.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,222.64 : 138,305.68 = 54,900.24 : x
  2. Step 2: Convert to fraction form
    100,222.64/138,305.68 = 54,900.24/x
  3. Step 3: Cross multiply
    100,222.64x = 138,305.68 × 54,900.24
  4. Step 4: Simplify right side
    100,222.64x = 7,593,015,025.36
  5. Step 5: Solve for x
    x = 7,593,015,025.36/100,222.64
  6. Step 6: Final answer
    x = 75,761.47

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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.