Home / 120,628.13-166,460.94-66,908.39

Finding the Fourth Proportional to 120,628.13, 166,460.94 and 66,908.39

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Solution

The fourth proportional to 120,628.13, 166,460.94 and 66,908.39 is: 92,330.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,628.13 : 166,460.94 = 66,908.39 : x
  2. Step 2: Convert to fraction form
    120,628.13/166,460.94 = 66,908.39/x
  3. Step 3: Cross multiply
    120,628.13x = 166,460.94 × 66,908.39
  4. Step 4: Simplify right side
    120,628.13x = 11,137,633,493.29
  5. Step 5: Solve for x
    x = 11,137,633,493.29/120,628.13
  6. Step 6: Final answer
    x = 92,330.32

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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.