Home / 120,665.04-166,498.98-68,981.38

Finding the Fourth Proportional to 120,665.04, 166,498.98 and 68,981.38

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Solution

The fourth proportional to 120,665.04, 166,498.98 and 68,981.38 is: 95,183.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,665.04 : 166,498.98 = 68,981.38 : x
  2. Step 2: Convert to fraction form
    120,665.04/166,498.98 = 68,981.38/x
  3. Step 3: Cross multiply
    120,665.04x = 166,498.98 × 68,981.38
  4. Step 4: Simplify right side
    120,665.04x = 11,485,329,408.99
  5. Step 5: Solve for x
    x = 11,485,329,408.99/120,665.04
  6. Step 6: Final answer
    x = 95,183.57

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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.