Home / 120,519.19-166,299.02-66,804.19

Finding the Fourth Proportional to 120,519.19, 166,299.02 and 66,804.19

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Solution

The fourth proportional to 120,519.19, 166,299.02 and 66,804.19 is: 92,180.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,519.19 : 166,299.02 = 66,804.19 : x
  2. Step 2: Convert to fraction form
    120,519.19/166,299.02 = 66,804.19/x
  3. Step 3: Cross multiply
    120,519.19x = 166,299.02 × 66,804.19
  4. Step 4: Simplify right side
    120,519.19x = 11,109,472,140.85
  5. Step 5: Solve for x
    x = 11,109,472,140.85/120,519.19
  6. Step 6: Final answer
    x = 92,180.11

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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.