Home / 138,450.24-191,074.68-88,146

Finding the Fourth Proportional to 138,450.24, 191,074.68 and 88,146

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Solution

The fourth proportional to 138,450.24, 191,074.68 and 88,146 is: 121,649.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,450.24 : 191,074.68 = 88,146 : x
  2. Step 2: Convert to fraction form
    138,450.24/191,074.68 = 88,146/x
  3. Step 3: Cross multiply
    138,450.24x = 191,074.68 × 88,146
  4. Step 4: Simplify right side
    138,450.24x = 16,842,468,743.28
  5. Step 5: Solve for x
    x = 16,842,468,743.28/138,450.24
  6. Step 6: Final answer
    x = 121,649.98

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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.