Home / 129,323.56-193,770.78-45,039.16

Finding the Fourth Proportional to 129,323.56, 193,770.78 and 45,039.16

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Solution

The fourth proportional to 129,323.56, 193,770.78 and 45,039.16 is: 67,484.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,323.56 : 193,770.78 = 45,039.16 : x
  2. Step 2: Convert to fraction form
    129,323.56/193,770.78 = 45,039.16/x
  3. Step 3: Cross multiply
    129,323.56x = 193,770.78 × 45,039.16
  4. Step 4: Simplify right side
    129,323.56x = 8,727,273,163.74
  5. Step 5: Solve for x
    x = 8,727,273,163.74/129,323.56
  6. Step 6: Final answer
    x = 67,484.02

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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.