Home / 120,209.16-165,887.22-66,489.96

Finding the Fourth Proportional to 120,209.16, 165,887.22 and 66,489.96

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Solution

The fourth proportional to 120,209.16, 165,887.22 and 66,489.96 is: 91,755.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,209.16 : 165,887.22 = 66,489.96 : x
  2. Step 2: Convert to fraction form
    120,209.16/165,887.22 = 66,489.96/x
  3. Step 3: Cross multiply
    120,209.16x = 165,887.22 × 66,489.96
  4. Step 4: Simplify right side
    120,209.16x = 11,029,834,622.31
  5. Step 5: Solve for x
    x = 11,029,834,622.31/120,209.16
  6. Step 6: Final answer
    x = 91,755.36

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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.