Home / 120,979.20-166,963.20-67,281.60

Finding the Fourth Proportional to 120,979.20, 166,963.20 and 67,281.60

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Solution

The fourth proportional to 120,979.20, 166,963.20 and 67,281.60 is: 92,855.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,979.20 : 166,963.20 = 67,281.60 : x
  2. Step 2: Convert to fraction form
    120,979.20/166,963.20 = 67,281.60/x
  3. Step 3: Cross multiply
    120,979.20x = 166,963.20 × 67,281.60
  4. Step 4: Simplify right side
    120,979.20x = 11,233,551,237.12
  5. Step 5: Solve for x
    x = 11,233,551,237.12/120,979.20
  6. Step 6: Final answer
    x = 92,855.23

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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.