Home / 120,976.89-166,947.24-67,261.47

Finding the Fourth Proportional to 120,976.89, 166,947.24 and 67,261.47

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Solution

The fourth proportional to 120,976.89, 166,947.24 and 67,261.47 is: 92,820.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,976.89 : 166,947.24 = 67,261.47 : x
  2. Step 2: Convert to fraction form
    120,976.89/166,947.24 = 67,261.47/x
  3. Step 3: Cross multiply
    120,976.89x = 166,947.24 × 67,261.47
  4. Step 4: Simplify right side
    120,976.89x = 11,229,116,774.84
  5. Step 5: Solve for x
    x = 11,229,116,774.84/120,976.89
  6. Step 6: Final answer
    x = 92,820.35

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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.