Home / 120,497.90-166,287.12-66,786.38

Finding the Fourth Proportional to 120,497.90, 166,287.12 and 66,786.38

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Solution

The fourth proportional to 120,497.90, 166,287.12 and 66,786.38 is: 92,165.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,497.90 : 166,287.12 = 66,786.38 : x
  2. Step 2: Convert to fraction form
    120,497.90/166,287.12 = 66,786.38/x
  3. Step 3: Cross multiply
    120,497.90x = 166,287.12 × 66,786.38
  4. Step 4: Simplify right side
    120,497.90x = 11,105,714,785.43
  5. Step 5: Solve for x
    x = 11,105,714,785.43/120,497.90
  6. Step 6: Final answer
    x = 92,165.21

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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.