Home / 120,919.19-166,874.13-67,205.09

Finding the Fourth Proportional to 120,919.19, 166,874.13 and 67,205.09

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Solution

The fourth proportional to 120,919.19, 166,874.13 and 67,205.09 is: 92,746.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,919.19 : 166,874.13 = 67,205.09 : x
  2. Step 2: Convert to fraction form
    120,919.19/166,874.13 = 67,205.09/x
  3. Step 3: Cross multiply
    120,919.19x = 166,874.13 × 67,205.09
  4. Step 4: Simplify right side
    120,919.19x = 11,214,790,925.32
  5. Step 5: Solve for x
    x = 11,214,790,925.32/120,919.19
  6. Step 6: Final answer
    x = 92,746.16

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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.