Home / 159,131.48-219,607.08-87,517.04

Finding the Fourth Proportional to 159,131.48, 219,607.08 and 87,517.04

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Solution

The fourth proportional to 159,131.48, 219,607.08 and 87,517.04 is: 120,776.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,131.48 : 219,607.08 = 87,517.04 : x
  2. Step 2: Convert to fraction form
    159,131.48/219,607.08 = 87,517.04/x
  3. Step 3: Cross multiply
    159,131.48x = 219,607.08 × 87,517.04
  4. Step 4: Simplify right side
    159,131.48x = 19,219,361,604.64
  5. Step 5: Solve for x
    x = 19,219,361,604.64/159,131.48
  6. Step 6: Final answer
    x = 120,776.62

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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.