Home / 131,444.91-197,229.51-68,231.43

Finding the Fourth Proportional to 131,444.91, 197,229.51 and 68,231.43

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Solution

The fourth proportional to 131,444.91, 197,229.51 and 68,231.43 is: 102,379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,444.91 : 197,229.51 = 68,231.43 : x
  2. Step 2: Convert to fraction form
    131,444.91/197,229.51 = 68,231.43/x
  3. Step 3: Cross multiply
    131,444.91x = 197,229.51 × 68,231.43
  4. Step 4: Simplify right side
    131,444.91x = 13,457,251,505.50
  5. Step 5: Solve for x
    x = 13,457,251,505.50/131,444.91
  6. Step 6: Final answer
    x = 102,379.40

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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.