Home / 300,972.60-451,537.20-87,735.69

Finding the Fourth Proportional to 300,972.60, 451,537.20 and 87,735.69

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Solution

The fourth proportional to 300,972.60, 451,537.20 and 87,735.69 is: 131,626.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,972.60 : 451,537.20 = 87,735.69 : x
  2. Step 2: Convert to fraction form
    300,972.60/451,537.20 = 87,735.69/x
  3. Step 3: Cross multiply
    300,972.60x = 451,537.20 × 87,735.69
  4. Step 4: Simplify right side
    300,972.60x = 39,615,927,802.67
  5. Step 5: Solve for x
    x = 39,615,927,802.67/300,972.60
  6. Step 6: Final answer
    x = 131,626.36

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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.