Home / 120,920.42-166,857.50-67,196.76

Finding the Fourth Proportional to 120,920.42, 166,857.50 and 67,196.76

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Solution

The fourth proportional to 120,920.42, 166,857.50 and 67,196.76 is: 92,724.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,920.42 : 166,857.50 = 67,196.76 : x
  2. Step 2: Convert to fraction form
    120,920.42/166,857.50 = 67,196.76/x
  3. Step 3: Cross multiply
    120,920.42x = 166,857.50 × 67,196.76
  4. Step 4: Simplify right side
    120,920.42x = 11,212,283,381.70
  5. Step 5: Solve for x
    x = 11,212,283,381.70/120,920.42
  6. Step 6: Final answer
    x = 92,724.48

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1.5x scale

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.