Home / 119,044.20-164,288.22-78,687.96

Finding the Fourth Proportional to 119,044.20, 164,288.22 and 78,687.96

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Solution

The fourth proportional to 119,044.20, 164,288.22 and 78,687.96 is: 108,594.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,044.20 : 164,288.22 = 78,687.96 : x
  2. Step 2: Convert to fraction form
    119,044.20/164,288.22 = 78,687.96/x
  3. Step 3: Cross multiply
    119,044.20x = 164,288.22 × 78,687.96
  4. Step 4: Simplify right side
    119,044.20x = 12,927,504,883.83
  5. Step 5: Solve for x
    x = 12,927,504,883.83/119,044.20
  6. Step 6: Final answer
    x = 108,594.16

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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.