Home / 120,276.96-165,982.52-66,565.68

Finding the Fourth Proportional to 120,276.96, 165,982.52 and 66,565.68

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Solution

The fourth proportional to 120,276.96, 165,982.52 and 66,565.68 is: 91,860.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,276.96 : 165,982.52 = 66,565.68 : x
  2. Step 2: Convert to fraction form
    120,276.96/165,982.52 = 66,565.68/x
  3. Step 3: Cross multiply
    120,276.96x = 165,982.52 × 66,565.68
  4. Step 4: Simplify right side
    120,276.96x = 11,048,739,311.91
  5. Step 5: Solve for x
    x = 11,048,739,311.91/120,276.96
  6. Step 6: Final answer
    x = 91,860.81

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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.