Home / 159,530.30-220,161.48-87,910.26

Finding the Fourth Proportional to 159,530.30, 220,161.48 and 87,910.26

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Solution

The fourth proportional to 159,530.30, 220,161.48 and 87,910.26 is: 121,321.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,530.30 : 220,161.48 = 87,910.26 : x
  2. Step 2: Convert to fraction form
    159,530.30/220,161.48 = 87,910.26/x
  3. Step 3: Cross multiply
    159,530.30x = 220,161.48 × 87,910.26
  4. Step 4: Simplify right side
    159,530.30x = 19,354,452,948.78
  5. Step 5: Solve for x
    x = 19,354,452,948.78/159,530.30
  6. Step 6: Final answer
    x = 121,321.49

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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.