Home / 146,543.80-219,815.70-72,662.20

Finding the Fourth Proportional to 146,543.80, 219,815.70 and 72,662.20

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Solution

The fourth proportional to 146,543.80, 219,815.70 and 72,662.20 is: 108,993.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,543.80 : 219,815.70 = 72,662.20 : x
  2. Step 2: Convert to fraction form
    146,543.80/219,815.70 = 72,662.20/x
  3. Step 3: Cross multiply
    146,543.80x = 219,815.70 × 72,662.20
  4. Step 4: Simplify right side
    146,543.80x = 15,972,292,356.54
  5. Step 5: Solve for x
    x = 15,972,292,356.54/146,543.80
  6. Step 6: Final answer
    x = 108,993.30

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1.5x scale

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.