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Finding the Fourth Proportional to 177,131.80, 265,697.70 and 72,026.20

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Solution

The fourth proportional to 177,131.80, 265,697.70 and 72,026.20 is: 108,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,131.80 : 265,697.70 = 72,026.20 : x
  2. Step 2: Convert to fraction form
    177,131.80/265,697.70 = 72,026.20/x
  3. Step 3: Cross multiply
    177,131.80x = 265,697.70 × 72,026.20
  4. Step 4: Simplify right side
    177,131.80x = 19,137,195,679.74
  5. Step 5: Solve for x
    x = 19,137,195,679.74/177,131.80
  6. Step 6: Final answer
    x = 108,039.30

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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.