Home / 129,836.56-194,776.37-45,574.86

Finding the Fourth Proportional to 129,836.56, 194,776.37 and 45,574.86

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Solution

The fourth proportional to 129,836.56, 194,776.37 and 45,574.86 is: 68,369.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,836.56 : 194,776.37 = 45,574.86 : x
  2. Step 2: Convert to fraction form
    129,836.56/194,776.37 = 45,574.86/x
  3. Step 3: Cross multiply
    129,836.56x = 194,776.37 × 45,574.86
  4. Step 4: Simplify right side
    129,836.56x = 8,876,905,566.18
  5. Step 5: Solve for x
    x = 8,876,905,566.18/129,836.56
  6. Step 6: Final answer
    x = 68,369.84

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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.