Home / 120,625.14-166,462.08-66,909.60

Finding the Fourth Proportional to 120,625.14, 166,462.08 and 66,909.60

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Solution

The fourth proportional to 120,625.14, 166,462.08 and 66,909.60 is: 92,334.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,625.14 : 166,462.08 = 66,909.60 : x
  2. Step 2: Convert to fraction form
    120,625.14/166,462.08 = 66,909.60/x
  3. Step 3: Cross multiply
    120,625.14x = 166,462.08 × 66,909.60
  4. Step 4: Simplify right side
    120,625.14x = 11,137,911,187.97
  5. Step 5: Solve for x
    x = 11,137,911,187.97/120,625.14
  6. Step 6: Final answer
    x = 92,334.91

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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.