Home / 129,861.77-194,912.40-65,864.83

Finding the Fourth Proportional to 129,861.77, 194,912.40 and 65,864.83

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Solution

The fourth proportional to 129,861.77, 194,912.40 and 65,864.83 is: 98,857.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,861.77 : 194,912.40 = 65,864.83 : x
  2. Step 2: Convert to fraction form
    129,861.77/194,912.40 = 65,864.83/x
  3. Step 3: Cross multiply
    129,861.77x = 194,912.40 × 65,864.83
  4. Step 4: Simplify right side
    129,861.77x = 12,837,871,255.38
  5. Step 5: Solve for x
    x = 12,837,871,255.38/129,861.77
  6. Step 6: Final answer
    x = 98,857.97

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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.