Home / 104,942.74-157,355.78-42,540.34

Finding the Fourth Proportional to 104,942.74, 157,355.78 and 42,540.34

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Solution

The fourth proportional to 104,942.74, 157,355.78 and 42,540.34 is: 63,786.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,942.74 : 157,355.78 = 42,540.34 : x
  2. Step 2: Convert to fraction form
    104,942.74/157,355.78 = 42,540.34/x
  3. Step 3: Cross multiply
    104,942.74x = 157,355.78 × 42,540.34
  4. Step 4: Simplify right side
    104,942.74x = 6,693,968,382.17
  5. Step 5: Solve for x
    x = 6,693,968,382.17/104,942.74
  6. Step 6: Final answer
    x = 63,786.86

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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.