Home / 146,828.40-219,805.20-87,633.60

Finding the Fourth Proportional to 146,828.40, 219,805.20 and 87,633.60

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Solution

The fourth proportional to 146,828.40, 219,805.20 and 87,633.60 is: 131,189.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,828.40 : 219,805.20 = 87,633.60 : x
  2. Step 2: Convert to fraction form
    146,828.40/219,805.20 = 87,633.60/x
  3. Step 3: Cross multiply
    146,828.40x = 219,805.20 × 87,633.60
  4. Step 4: Simplify right side
    146,828.40x = 19,262,320,974.72
  5. Step 5: Solve for x
    x = 19,262,320,974.72/146,828.40
  6. Step 6: Final answer
    x = 131,189.34

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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.