Home / 197,439.12-272,472.24-108,015.12

Finding the Fourth Proportional to 197,439.12, 272,472.24 and 108,015.12

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Solution

The fourth proportional to 197,439.12, 272,472.24 and 108,015.12 is: 149,064.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,439.12 : 272,472.24 = 108,015.12 : x
  2. Step 2: Convert to fraction form
    197,439.12/272,472.24 = 108,015.12/x
  3. Step 3: Cross multiply
    197,439.12x = 272,472.24 × 108,015.12
  4. Step 4: Simplify right side
    197,439.12x = 29,431,121,700.27
  5. Step 5: Solve for x
    x = 29,431,121,700.27/197,439.12
  6. Step 6: Final answer
    x = 149,064.29

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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.