Home / 198,945.23-298,388.16-72,555.77

Finding the Fourth Proportional to 198,945.23, 298,388.16 and 72,555.77

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Solution

The fourth proportional to 198,945.23, 298,388.16 and 72,555.77 is: 108,822.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,945.23 : 298,388.16 = 72,555.77 : x
  2. Step 2: Convert to fraction form
    198,945.23/298,388.16 = 72,555.77/x
  3. Step 3: Cross multiply
    198,945.23x = 298,388.16 × 72,555.77
  4. Step 4: Simplify right side
    198,945.23x = 21,649,781,215.74
  5. Step 5: Solve for x
    x = 21,649,781,215.74/198,945.23
  6. Step 6: Final answer
    x = 108,822.82

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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.