Home / 129,922.08-195,327.84-120,182.64

Finding the Fourth Proportional to 129,922.08, 195,327.84 and 120,182.64

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Solution

The fourth proportional to 129,922.08, 195,327.84 and 120,182.64 is: 180,685.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,922.08 : 195,327.84 = 120,182.64 : x
  2. Step 2: Convert to fraction form
    129,922.08/195,327.84 = 120,182.64/x
  3. Step 3: Cross multiply
    129,922.08x = 195,327.84 × 120,182.64
  4. Step 4: Simplify right side
    129,922.08x = 23,475,015,476.70
  5. Step 5: Solve for x
    x = 23,475,015,476.70/129,922.08
  6. Step 6: Final answer
    x = 180,685.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.