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Finding the Fourth Proportional to 120,352.76, 166,091.99 and 66,637.76

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Solution

The fourth proportional to 120,352.76, 166,091.99 and 66,637.76 is: 91,962.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,352.76 : 166,091.99 = 66,637.76 : x
  2. Step 2: Convert to fraction form
    120,352.76/166,091.99 = 66,637.76/x
  3. Step 3: Cross multiply
    120,352.76x = 166,091.99 × 66,637.76
  4. Step 4: Simplify right side
    120,352.76x = 11,067,998,249.58
  5. Step 5: Solve for x
    x = 11,067,998,249.58/120,352.76
  6. Step 6: Final answer
    x = 91,962.98

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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.