Home / 120,514.14-166,310.69-66,800.03

Finding the Fourth Proportional to 120,514.14, 166,310.69 and 66,800.03

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Solution

The fourth proportional to 120,514.14, 166,310.69 and 66,800.03 is: 92,184.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,514.14 : 166,310.69 = 66,800.03 : x
  2. Step 2: Convert to fraction form
    120,514.14/166,310.69 = 66,800.03/x
  3. Step 3: Cross multiply
    120,514.14x = 166,310.69 × 66,800.03
  4. Step 4: Simplify right side
    120,514.14x = 11,109,557,915.77
  5. Step 5: Solve for x
    x = 11,109,557,915.77/120,514.14
  6. Step 6: Final answer
    x = 92,184.68

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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.