Home / 129,955.20-195,005.70-55,062.60

Finding the Fourth Proportional to 129,955.20, 195,005.70 and 55,062.60

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Solution

The fourth proportional to 129,955.20, 195,005.70 and 55,062.60 is: 82,624.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,955.20 : 195,005.70 = 55,062.60 : x
  2. Step 2: Convert to fraction form
    129,955.20/195,005.70 = 55,062.60/x
  3. Step 3: Cross multiply
    129,955.20x = 195,005.70 × 55,062.60
  4. Step 4: Simplify right side
    129,955.20x = 10,737,520,856.82
  5. Step 5: Solve for x
    x = 10,737,520,856.82/129,955.20
  6. Step 6: Final answer
    x = 82,624.79

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1.5x scale

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.