Home / 129,280.83-193,873.25-45,019.37

Finding the Fourth Proportional to 129,280.83, 193,873.25 and 45,019.37

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Solution

The fourth proportional to 129,280.83, 193,873.25 and 45,019.37 is: 67,512.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,280.83 : 193,873.25 = 45,019.37 : x
  2. Step 2: Convert to fraction form
    129,280.83/193,873.25 = 45,019.37/x
  3. Step 3: Cross multiply
    129,280.83x = 193,873.25 × 45,019.37
  4. Step 4: Simplify right side
    129,280.83x = 8,728,050,380.39
  5. Step 5: Solve for x
    x = 8,728,050,380.39/129,280.83
  6. Step 6: Final answer
    x = 67,512.33

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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.