Home / 120,224.39-165,912.57-66,510.45

Finding the Fourth Proportional to 120,224.39, 165,912.57 and 66,510.45

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Solution

The fourth proportional to 120,224.39, 165,912.57 and 66,510.45 is: 91,786.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,224.39 : 165,912.57 = 66,510.45 : x
  2. Step 2: Convert to fraction form
    120,224.39/165,912.57 = 66,510.45/x
  3. Step 3: Cross multiply
    120,224.39x = 165,912.57 × 66,510.45
  4. Step 4: Simplify right side
    120,224.39x = 11,034,919,691.36
  5. Step 5: Solve for x
    x = 11,034,919,691.36/120,224.39
  6. Step 6: Final answer
    x = 91,786.04

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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.