Home / 120,548.42-166,353.17-66,830.30

Finding the Fourth Proportional to 120,548.42, 166,353.17 and 66,830.30

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Solution

The fourth proportional to 120,548.42, 166,353.17 and 66,830.30 is: 92,223.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,548.42 : 166,353.17 = 66,830.30 : x
  2. Step 2: Convert to fraction form
    120,548.42/166,353.17 = 66,830.30/x
  3. Step 3: Cross multiply
    120,548.42x = 166,353.17 × 66,830.30
  4. Step 4: Simplify right side
    120,548.42x = 11,117,431,091.13
  5. Step 5: Solve for x
    x = 11,117,431,091.13/120,548.42
  6. Step 6: Final answer
    x = 92,223.78

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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.