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Finding the Fourth Proportional to 177,857.76, 266,787.09 and 72,676.71

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Solution

The fourth proportional to 177,857.76, 266,787.09 and 72,676.71 is: 109,015.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,857.76 : 266,787.09 = 72,676.71 : x
  2. Step 2: Convert to fraction form
    177,857.76/266,787.09 = 72,676.71/x
  3. Step 3: Cross multiply
    177,857.76x = 266,787.09 × 72,676.71
  4. Step 4: Simplify right side
    177,857.76x = 19,389,207,971.67
  5. Step 5: Solve for x
    x = 19,389,207,971.67/177,857.76
  6. Step 6: Final answer
    x = 109,015.25

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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.