Home / 177,905.80-266,729.10-72,670.60

Finding the Fourth Proportional to 177,905.80, 266,729.10 and 72,670.60

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Solution

The fourth proportional to 177,905.80, 266,729.10 and 72,670.60 is: 108,952.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,905.80 : 266,729.10 = 72,670.60 : x
  2. Step 2: Convert to fraction form
    177,905.80/266,729.10 = 72,670.60/x
  3. Step 3: Cross multiply
    177,905.80x = 266,729.10 × 72,670.60
  4. Step 4: Simplify right side
    177,905.80x = 19,383,363,734.46
  5. Step 5: Solve for x
    x = 19,383,363,734.46/177,905.80
  6. Step 6: Final answer
    x = 108,952.96

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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.