Home / 120,481.53-166,265.47-66,767.43

Finding the Fourth Proportional to 120,481.53, 166,265.47 and 66,767.43

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Solution

The fourth proportional to 120,481.53, 166,265.47 and 66,767.43 is: 92,139.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,481.53 : 166,265.47 = 66,767.43 : x
  2. Step 2: Convert to fraction form
    120,481.53/166,265.47 = 66,767.43/x
  3. Step 3: Cross multiply
    120,481.53x = 166,265.47 × 66,767.43
  4. Step 4: Simplify right side
    120,481.53x = 11,101,118,129.64
  5. Step 5: Solve for x
    x = 11,101,118,129.64/120,481.53
  6. Step 6: Final answer
    x = 92,139.58

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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.