Home / 120,910.78-166,857.22-67,195.63

Finding the Fourth Proportional to 120,910.78, 166,857.22 and 67,195.63

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Solution

The fourth proportional to 120,910.78, 166,857.22 and 67,195.63 is: 92,730.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,910.78 : 166,857.22 = 67,195.63 : x
  2. Step 2: Convert to fraction form
    120,910.78/166,857.22 = 67,195.63/x
  3. Step 3: Cross multiply
    120,910.78x = 166,857.22 × 67,195.63
  4. Step 4: Simplify right side
    120,910.78x = 11,212,076,017.95
  5. Step 5: Solve for x
    x = 11,212,076,017.95/120,910.78
  6. Step 6: Final answer
    x = 92,730.16

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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.