Home / 110,961.40-166,442.10-66,565.30

Finding the Fourth Proportional to 110,961.40, 166,442.10 and 66,565.30

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Solution

The fourth proportional to 110,961.40, 166,442.10 and 66,565.30 is: 99,847.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,961.40 : 166,442.10 = 66,565.30 : x
  2. Step 2: Convert to fraction form
    110,961.40/166,442.10 = 66,565.30/x
  3. Step 3: Cross multiply
    110,961.40x = 166,442.10 × 66,565.30
  4. Step 4: Simplify right side
    110,961.40x = 11,079,268,319.13
  5. Step 5: Solve for x
    x = 11,079,268,319.13/110,961.40
  6. Step 6: Final answer
    x = 99,847.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.