Home / 120,535.85-166,324.10-66,820.38

Finding the Fourth Proportional to 120,535.85, 166,324.10 and 66,820.38

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Solution

The fourth proportional to 120,535.85, 166,324.10 and 66,820.38 is: 92,203.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,535.85 : 166,324.10 = 66,820.38 : x
  2. Step 2: Convert to fraction form
    120,535.85/166,324.10 = 66,820.38/x
  3. Step 3: Cross multiply
    120,535.85x = 166,324.10 × 66,820.38
  4. Step 4: Simplify right side
    120,535.85x = 11,113,839,231.06
  5. Step 5: Solve for x
    x = 11,113,839,231.06/120,535.85
  6. Step 6: Final answer
    x = 92,203.60

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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.