Home / 146,819.80-220,083.90-71,878.60

Finding the Fourth Proportional to 146,819.80, 220,083.90 and 71,878.60

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Solution

The fourth proportional to 146,819.80, 220,083.90 and 71,878.60 is: 107,746.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,819.80 : 220,083.90 = 71,878.60 : x
  2. Step 2: Convert to fraction form
    146,819.80/220,083.90 = 71,878.60/x
  3. Step 3: Cross multiply
    146,819.80x = 220,083.90 × 71,878.60
  4. Step 4: Simplify right side
    146,819.80x = 15,819,322,614.54
  5. Step 5: Solve for x
    x = 15,819,322,614.54/146,819.80
  6. Step 6: Final answer
    x = 107,746.52

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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.