Home / 131,777.20-197,665.80-43,009.30

Finding the Fourth Proportional to 131,777.20, 197,665.80 and 43,009.30

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Solution

The fourth proportional to 131,777.20, 197,665.80 and 43,009.30 is: 64,513.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,777.20 : 197,665.80 = 43,009.30 : x
  2. Step 2: Convert to fraction form
    131,777.20/197,665.80 = 43,009.30/x
  3. Step 3: Cross multiply
    131,777.20x = 197,665.80 × 43,009.30
  4. Step 4: Simplify right side
    131,777.20x = 8,501,467,691.94
  5. Step 5: Solve for x
    x = 8,501,467,691.94/131,777.20
  6. Step 6: Final answer
    x = 64,513.95

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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.