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Finding the Fourth Proportional to 177,104.80, 265,657.20 and 71,999.20

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Solution

The fourth proportional to 177,104.80, 265,657.20 and 71,999.20 is: 107,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,104.80 : 265,657.20 = 71,999.20 : x
  2. Step 2: Convert to fraction form
    177,104.80/265,657.20 = 71,999.20/x
  3. Step 3: Cross multiply
    177,104.80x = 265,657.20 × 71,999.20
  4. Step 4: Simplify right side
    177,104.80x = 19,127,105,874.24
  5. Step 5: Solve for x
    x = 19,127,105,874.24/177,104.80
  6. Step 6: Final answer
    x = 107,998.80

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1.5x scale

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.