Home / 138,738.12-191,458.68-96,321.24

Finding the Fourth Proportional to 138,738.12, 191,458.68 and 96,321.24

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Solution

The fourth proportional to 138,738.12, 191,458.68 and 96,321.24 is: 132,923.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,738.12 : 191,458.68 = 96,321.24 : x
  2. Step 2: Convert to fraction form
    138,738.12/191,458.68 = 96,321.24/x
  3. Step 3: Cross multiply
    138,738.12x = 191,458.68 × 96,321.24
  4. Step 4: Simplify right side
    138,738.12x = 18,441,537,466.36
  5. Step 5: Solve for x
    x = 18,441,537,466.36/138,738.12
  6. Step 6: Final answer
    x = 132,923.36

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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.