Home / 104,729.82-157,104.45-42,405.18

Finding the Fourth Proportional to 104,729.82, 157,104.45 and 42,405.18

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Solution

The fourth proportional to 104,729.82, 157,104.45 and 42,405.18 is: 63,611.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,729.82 : 157,104.45 = 42,405.18 : x
  2. Step 2: Convert to fraction form
    104,729.82/157,104.45 = 42,405.18/x
  3. Step 3: Cross multiply
    104,729.82x = 157,104.45 × 42,405.18
  4. Step 4: Simplify right side
    104,729.82x = 6,662,042,481.05
  5. Step 5: Solve for x
    x = 6,662,042,481.05/104,729.82
  6. Step 6: Final answer
    x = 63,611.71

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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.