Home / 120,279.27-165,990.60-66,564.30

Finding the Fourth Proportional to 120,279.27, 165,990.60 and 66,564.30

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Solution

The fourth proportional to 120,279.27, 165,990.60 and 66,564.30 is: 91,861.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,279.27 : 165,990.60 = 66,564.30 : x
  2. Step 2: Convert to fraction form
    120,279.27/165,990.60 = 66,564.30/x
  3. Step 3: Cross multiply
    120,279.27x = 165,990.60 × 66,564.30
  4. Step 4: Simplify right side
    120,279.27x = 11,049,047,784.35
  5. Step 5: Solve for x
    x = 11,049,047,784.35/120,279.27
  6. Step 6: Final answer
    x = 91,861.61

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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.