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Finding the Fourth Proportional to 177,967.80, 266,796.72 and 72,719.64

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Solution

The fourth proportional to 177,967.80, 266,796.72 and 72,719.64 is: 109,016.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,967.80 : 266,796.72 = 72,719.64 : x
  2. Step 2: Convert to fraction form
    177,967.80/266,796.72 = 72,719.64/x
  3. Step 3: Cross multiply
    177,967.80x = 266,796.72 × 72,719.64
  4. Step 4: Simplify right side
    177,967.80x = 19,401,361,431.58
  5. Step 5: Solve for x
    x = 19,401,361,431.58/177,967.80
  6. Step 6: Final answer
    x = 109,016.13

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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.