Home / 120,418.11-166,181.58-66,701.97

Finding the Fourth Proportional to 120,418.11, 166,181.58 and 66,701.97

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Solution

The fourth proportional to 120,418.11, 166,181.58 and 66,701.97 is: 92,051.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,418.11 : 166,181.58 = 66,701.97 : x
  2. Step 2: Convert to fraction form
    120,418.11/166,181.58 = 66,701.97/x
  3. Step 3: Cross multiply
    120,418.11x = 166,181.58 × 66,701.97
  4. Step 4: Simplify right side
    120,418.11x = 11,084,638,763.71
  5. Step 5: Solve for x
    x = 11,084,638,763.71/120,418.11
  6. Step 6: Final answer
    x = 92,051.26

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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.