Home / 166,835.92-250,107.24-86,705.20

Finding the Fourth Proportional to 166,835.92, 250,107.24 and 86,705.20

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Solution

The fourth proportional to 166,835.92, 250,107.24 and 86,705.20 is: 129,981.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,835.92 : 250,107.24 = 86,705.20 : x
  2. Step 2: Convert to fraction form
    166,835.92/250,107.24 = 86,705.20/x
  3. Step 3: Cross multiply
    166,835.92x = 250,107.24 × 86,705.20
  4. Step 4: Simplify right side
    166,835.92x = 21,685,598,265.65
  5. Step 5: Solve for x
    x = 21,685,598,265.65/166,835.92
  6. Step 6: Final answer
    x = 129,981.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.