Home / 121,577.44-167,785.32-67,873

Finding the Fourth Proportional to 121,577.44, 167,785.32 and 67,873

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Solution

The fourth proportional to 121,577.44, 167,785.32 and 67,873 is: 93,669.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,577.44 : 167,785.32 = 67,873 : x
  2. Step 2: Convert to fraction form
    121,577.44/167,785.32 = 67,873/x
  3. Step 3: Cross multiply
    121,577.44x = 167,785.32 × 67,873
  4. Step 4: Simplify right side
    121,577.44x = 11,388,093,024.36
  5. Step 5: Solve for x
    x = 11,388,093,024.36/121,577.44
  6. Step 6: Final answer
    x = 93,669.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.