Home / 205,563.06-308,302.20-79,159.92

Finding the Fourth Proportional to 205,563.06, 308,302.20 and 79,159.92

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Solution

The fourth proportional to 205,563.06, 308,302.20 and 79,159.92 is: 118,723.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,563.06 : 308,302.20 = 79,159.92 : x
  2. Step 2: Convert to fraction form
    205,563.06/308,302.20 = 79,159.92/x
  3. Step 3: Cross multiply
    205,563.06x = 308,302.20 × 79,159.92
  4. Step 4: Simplify right side
    205,563.06x = 24,405,177,487.82
  5. Step 5: Solve for x
    x = 24,405,177,487.82/205,563.06
  6. Step 6: Final answer
    x = 118,723.56

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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.