Home / 146,441.80-219,662.70-87,344.20

Finding the Fourth Proportional to 146,441.80, 219,662.70 and 87,344.20

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Solution

The fourth proportional to 146,441.80, 219,662.70 and 87,344.20 is: 131,016.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,441.80 : 219,662.70 = 87,344.20 : x
  2. Step 2: Convert to fraction form
    146,441.80/219,662.70 = 87,344.20/x
  3. Step 3: Cross multiply
    146,441.80x = 219,662.70 × 87,344.20
  4. Step 4: Simplify right side
    146,441.80x = 19,186,262,801.34
  5. Step 5: Solve for x
    x = 19,186,262,801.34/146,441.80
  6. Step 6: Final answer
    x = 131,016.30

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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.