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Finding the Fourth Proportional to 120,414.69, 166,173.66 and 66,700.76

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Solution

The fourth proportional to 120,414.69, 166,173.66 and 66,700.76 is: 92,047.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,414.69 : 166,173.66 = 66,700.76 : x
  2. Step 2: Convert to fraction form
    120,414.69/166,173.66 = 66,700.76/x
  3. Step 3: Cross multiply
    120,414.69x = 166,173.66 × 66,700.76
  4. Step 4: Simplify right side
    120,414.69x = 11,083,908,583.11
  5. Step 5: Solve for x
    x = 11,083,908,583.11/120,414.69
  6. Step 6: Final answer
    x = 92,047.81

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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.