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Finding the Fourth Proportional to 177,858.76, 266,788.59 and 72,677.71

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Solution

The fourth proportional to 177,858.76, 266,788.59 and 72,677.71 is: 109,016.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,858.76 : 266,788.59 = 72,677.71 : x
  2. Step 2: Convert to fraction form
    177,858.76/266,788.59 = 72,677.71/x
  3. Step 3: Cross multiply
    177,858.76x = 266,788.59 × 72,677.71
  4. Step 4: Simplify right side
    177,858.76x = 19,389,583,775.33
  5. Step 5: Solve for x
    x = 19,389,583,775.33/177,858.76
  6. Step 6: Final answer
    x = 109,016.75

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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.