Home / 120,215.57-165,909.85-69,230.23

Finding the Fourth Proportional to 120,215.57, 165,909.85 and 69,230.23

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Solution

The fourth proportional to 120,215.57, 165,909.85 and 69,230.23 is: 95,544.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,215.57 : 165,909.85 = 69,230.23 : x
  2. Step 2: Convert to fraction form
    120,215.57/165,909.85 = 69,230.23/x
  3. Step 3: Cross multiply
    120,215.57x = 165,909.85 × 69,230.23
  4. Step 4: Simplify right side
    120,215.57x = 11,485,976,486.92
  5. Step 5: Solve for x
    x = 11,485,976,486.92/120,215.57
  6. Step 6: Final answer
    x = 95,544.84

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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.