Home / 120,507.06-166,309.70-66,808.92

Finding the Fourth Proportional to 120,507.06, 166,309.70 and 66,808.92

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Solution

The fourth proportional to 120,507.06, 166,309.70 and 66,808.92 is: 92,201.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,507.06 : 166,309.70 = 66,808.92 : x
  2. Step 2: Convert to fraction form
    120,507.06/166,309.70 = 66,808.92/x
  3. Step 3: Cross multiply
    120,507.06x = 166,309.70 × 66,808.92
  4. Step 4: Simplify right side
    120,507.06x = 11,110,971,442.52
  5. Step 5: Solve for x
    x = 11,110,971,442.52/120,507.06
  6. Step 6: Final answer
    x = 92,201.83

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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.