Home / 120,819.08-166,733.94-73,081.16

Finding the Fourth Proportional to 120,819.08, 166,733.94 and 73,081.16

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Solution

The fourth proportional to 120,819.08, 166,733.94 and 73,081.16 is: 100,854.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,819.08 : 166,733.94 = 73,081.16 : x
  2. Step 2: Convert to fraction form
    120,819.08/166,733.94 = 73,081.16/x
  3. Step 3: Cross multiply
    120,819.08x = 166,733.94 × 73,081.16
  4. Step 4: Simplify right side
    120,819.08x = 12,185,109,746.57
  5. Step 5: Solve for x
    x = 12,185,109,746.57/120,819.08
  6. Step 6: Final answer
    x = 100,854.18

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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.