Home / 120,358.17-166,080.85-66,629.73

Finding the Fourth Proportional to 120,358.17, 166,080.85 and 66,629.73

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Solution

The fourth proportional to 120,358.17, 166,080.85 and 66,629.73 is: 91,941.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,358.17 : 166,080.85 = 66,629.73 : x
  2. Step 2: Convert to fraction form
    120,358.17/166,080.85 = 66,629.73/x
  3. Step 3: Cross multiply
    120,358.17x = 166,080.85 × 66,629.73
  4. Step 4: Simplify right side
    120,358.17x = 11,065,922,193.67
  5. Step 5: Solve for x
    x = 11,065,922,193.67/120,358.17
  6. Step 6: Final answer
    x = 91,941.60

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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.