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Finding the Fourth Proportional to 177,177.78, 265,766.67 and 72,004.95

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Solution

The fourth proportional to 177,177.78, 265,766.67 and 72,004.95 is: 108,007.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,177.78 : 265,766.67 = 72,004.95 : x
  2. Step 2: Convert to fraction form
    177,177.78/265,766.67 = 72,004.95/x
  3. Step 3: Cross multiply
    177,177.78x = 265,766.67 × 72,004.95
  4. Step 4: Simplify right side
    177,177.78x = 19,136,515,785.02
  5. Step 5: Solve for x
    x = 19,136,515,785.02/177,177.78
  6. Step 6: Final answer
    x = 108,007.43

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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.