Home / 138,157.54-207,236.30-38,317.73

Finding the Fourth Proportional to 138,157.54, 207,236.30 and 38,317.73

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Solution

The fourth proportional to 138,157.54, 207,236.30 and 38,317.73 is: 57,476.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,157.54 : 207,236.30 = 38,317.73 : x
  2. Step 2: Convert to fraction form
    138,157.54/207,236.30 = 38,317.73/x
  3. Step 3: Cross multiply
    138,157.54x = 207,236.30 × 38,317.73
  4. Step 4: Simplify right side
    138,157.54x = 7,940,824,589.60
  5. Step 5: Solve for x
    x = 7,940,824,589.60/138,157.54
  6. Step 6: Final answer
    x = 57,476.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.