Home / 120,067.52-165,679.08-66,349.34

Finding the Fourth Proportional to 120,067.52, 165,679.08 and 66,349.34

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Solution

The fourth proportional to 120,067.52, 165,679.08 and 66,349.34 is: 91,554.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,067.52 : 165,679.08 = 66,349.34 : x
  2. Step 2: Convert to fraction form
    120,067.52/165,679.08 = 66,349.34/x
  3. Step 3: Cross multiply
    120,067.52x = 165,679.08 × 66,349.34
  4. Step 4: Simplify right side
    120,067.52x = 10,992,696,781.41
  5. Step 5: Solve for x
    x = 10,992,696,781.41/120,067.52
  6. Step 6: Final answer
    x = 91,554.29

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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.