Home / 120,936.25-166,887.77-66,488.02

Finding the Fourth Proportional to 120,936.25, 166,887.77 and 66,488.02

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Solution

The fourth proportional to 120,936.25, 166,887.77 and 66,488.02 is: 91,751.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,936.25 : 166,887.77 = 66,488.02 : x
  2. Step 2: Convert to fraction form
    120,936.25/166,887.77 = 66,488.02/x
  3. Step 3: Cross multiply
    120,936.25x = 166,887.77 × 66,488.02
  4. Step 4: Simplify right side
    120,936.25x = 11,096,037,265.69
  5. Step 5: Solve for x
    x = 11,096,037,265.69/120,936.25
  6. Step 6: Final answer
    x = 91,751.13

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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.