Home / 159,420.06-219,992.58-91,388.26

Finding the Fourth Proportional to 159,420.06, 219,992.58 and 91,388.26

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Solution

The fourth proportional to 159,420.06, 219,992.58 and 91,388.26 is: 126,111.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,420.06 : 219,992.58 = 91,388.26 : x
  2. Step 2: Convert to fraction form
    159,420.06/219,992.58 = 91,388.26/x
  3. Step 3: Cross multiply
    159,420.06x = 219,992.58 × 91,388.26
  4. Step 4: Simplify right side
    159,420.06x = 20,104,739,099.11
  5. Step 5: Solve for x
    x = 20,104,739,099.11/159,420.06
  6. Step 6: Final answer
    x = 126,111.73

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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.