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Finding the Fourth Proportional to 177,173.60, 265,792.80 and 72,003.20

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Solution

The fourth proportional to 177,173.60, 265,792.80 and 72,003.20 is: 108,017.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,173.60 : 265,792.80 = 72,003.20 : x
  2. Step 2: Convert to fraction form
    177,173.60/265,792.80 = 72,003.20/x
  3. Step 3: Cross multiply
    177,173.60x = 265,792.80 × 72,003.20
  4. Step 4: Simplify right side
    177,173.60x = 19,137,932,136.96
  5. Step 5: Solve for x
    x = 19,137,932,136.96/177,173.60
  6. Step 6: Final answer
    x = 108,017.97

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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.