Home / 120,250.01-165,872.73-79,414.51

Finding the Fourth Proportional to 120,250.01, 165,872.73 and 79,414.51

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Solution

The fourth proportional to 120,250.01, 165,872.73 and 79,414.51 is: 109,544.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,250.01 : 165,872.73 = 79,414.51 : x
  2. Step 2: Convert to fraction form
    120,250.01/165,872.73 = 79,414.51/x
  3. Step 3: Cross multiply
    120,250.01x = 165,872.73 × 79,414.51
  4. Step 4: Simplify right side
    120,250.01x = 13,172,701,575.31
  5. Step 5: Solve for x
    x = 13,172,701,575.31/120,250.01
  6. Step 6: Final answer
    x = 109,544.29

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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.