Home / 120,934.36-166,899.72-67,228.12

Finding the Fourth Proportional to 120,934.36, 166,899.72 and 67,228.12

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Solution

The fourth proportional to 120,934.36, 166,899.72 and 67,228.12 is: 92,780.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,934.36 : 166,899.72 = 67,228.12 : x
  2. Step 2: Convert to fraction form
    120,934.36/166,899.72 = 67,228.12/x
  3. Step 3: Cross multiply
    120,934.36x = 166,899.72 × 67,228.12
  4. Step 4: Simplify right side
    120,934.36x = 11,220,354,404.13
  5. Step 5: Solve for x
    x = 11,220,354,404.13/120,934.36
  6. Step 6: Final answer
    x = 92,780.53

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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.