Home / 120,350.37-166,088.70-66,635.38

Finding the Fourth Proportional to 120,350.37, 166,088.70 and 66,635.38

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Solution

The fourth proportional to 120,350.37, 166,088.70 and 66,635.38 is: 91,959.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,350.37 : 166,088.70 = 66,635.38 : x
  2. Step 2: Convert to fraction form
    120,350.37/166,088.70 = 66,635.38/x
  3. Step 3: Cross multiply
    120,350.37x = 166,088.70 × 66,635.38
  4. Step 4: Simplify right side
    120,350.37x = 11,067,383,638.21
  5. Step 5: Solve for x
    x = 11,067,383,638.21/120,350.37
  6. Step 6: Final answer
    x = 91,959.70

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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.