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Finding the Fourth Proportional to 177,376.89, 265,834.31 and 72,072.75

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Solution

The fourth proportional to 177,376.89, 265,834.31 and 72,072.75 is: 108,015.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,376.89 : 265,834.31 = 72,072.75 : x
  2. Step 2: Convert to fraction form
    177,376.89/265,834.31 = 72,072.75/x
  3. Step 3: Cross multiply
    177,376.89x = 265,834.31 × 72,072.75
  4. Step 4: Simplify right side
    177,376.89x = 19,159,409,405.69
  5. Step 5: Solve for x
    x = 19,159,409,405.69/177,376.89
  6. Step 6: Final answer
    x = 108,015.25

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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.