Home / 120,669.89-166,521.90-66,953.75

Finding the Fourth Proportional to 120,669.89, 166,521.90 and 66,953.75

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Solution

The fourth proportional to 120,669.89, 166,521.90 and 66,953.75 is: 92,394.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,669.89 : 166,521.90 = 66,953.75 : x
  2. Step 2: Convert to fraction form
    120,669.89/166,521.90 = 66,953.75/x
  3. Step 3: Cross multiply
    120,669.89x = 166,521.90 × 66,953.75
  4. Step 4: Simplify right side
    120,669.89x = 11,149,265,662.13
  5. Step 5: Solve for x
    x = 11,149,265,662.13/120,669.89
  6. Step 6: Final answer
    x = 92,394.76

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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.