Home / 159,391.30-219,959.96-87,771.14

Finding the Fourth Proportional to 159,391.30, 219,959.96 and 87,771.14

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Solution

The fourth proportional to 159,391.30, 219,959.96 and 87,771.14 is: 121,124.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,391.30 : 219,959.96 = 87,771.14 : x
  2. Step 2: Convert to fraction form
    159,391.30/219,959.96 = 87,771.14/x
  3. Step 3: Cross multiply
    159,391.30x = 219,959.96 × 87,771.14
  4. Step 4: Simplify right side
    159,391.30x = 19,306,136,443.55
  5. Step 5: Solve for x
    x = 19,306,136,443.55/159,391.30
  6. Step 6: Final answer
    x = 121,124.16

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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.