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Finding the Fourth Proportional to 177,786.88, 266,680.59 and 72,605.86

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Solution

The fourth proportional to 177,786.88, 266,680.59 and 72,605.86 is: 108,908.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,786.88 : 266,680.59 = 72,605.86 : x
  2. Step 2: Convert to fraction form
    177,786.88/266,680.59 = 72,605.86/x
  3. Step 3: Cross multiply
    177,786.88x = 266,680.59 × 72,605.86
  4. Step 4: Simplify right side
    177,786.88x = 19,362,571,885.83
  5. Step 5: Solve for x
    x = 19,362,571,885.83/177,786.88
  6. Step 6: Final answer
    x = 108,908.89

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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.