Home / 120,849.60-166,766.79-67,137.89

Finding the Fourth Proportional to 120,849.60, 166,766.79 and 67,137.89

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Solution

The fourth proportional to 120,849.60, 166,766.79 and 67,137.89 is: 92,647.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,849.60 : 166,766.79 = 67,137.89 : x
  2. Step 2: Convert to fraction form
    120,849.60/166,766.79 = 67,137.89/x
  3. Step 3: Cross multiply
    120,849.60x = 166,766.79 × 67,137.89
  4. Step 4: Simplify right side
    120,849.60x = 11,196,370,402.67
  5. Step 5: Solve for x
    x = 11,196,370,402.67/120,849.60
  6. Step 6: Final answer
    x = 92,647.14

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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.