Home / 138,451.24-191,076.06-88,147

Finding the Fourth Proportional to 138,451.24, 191,076.06 and 88,147

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Solution

The fourth proportional to 138,451.24, 191,076.06 and 88,147 is: 121,651.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,451.24 : 191,076.06 = 88,147 : x
  2. Step 2: Convert to fraction form
    138,451.24/191,076.06 = 88,147/x
  3. Step 3: Cross multiply
    138,451.24x = 191,076.06 × 88,147
  4. Step 4: Simplify right side
    138,451.24x = 16,842,781,460.82
  5. Step 5: Solve for x
    x = 16,842,781,460.82/138,451.24
  6. Step 6: Final answer
    x = 121,651.36

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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.