Home / 120,651.68-166,519.32-66,953.95

Finding the Fourth Proportional to 120,651.68, 166,519.32 and 66,953.95

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Solution

The fourth proportional to 120,651.68, 166,519.32 and 66,953.95 is: 92,407.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,651.68 : 166,519.32 = 66,953.95 : x
  2. Step 2: Convert to fraction form
    120,651.68/166,519.32 = 66,953.95/x
  3. Step 3: Cross multiply
    120,651.68x = 166,519.32 × 66,953.95
  4. Step 4: Simplify right side
    120,651.68x = 11,149,126,225.31
  5. Step 5: Solve for x
    x = 11,149,126,225.31/120,651.68
  6. Step 6: Final answer
    x = 92,407.55

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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.