Home / 131,063.28-180,861.36-80,161.26

Finding the Fourth Proportional to 131,063.28, 180,861.36 and 80,161.26

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Solution

The fourth proportional to 131,063.28, 180,861.36 and 80,161.26 is: 110,618.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,063.28 : 180,861.36 = 80,161.26 : x
  2. Step 2: Convert to fraction form
    131,063.28/180,861.36 = 80,161.26/x
  3. Step 3: Cross multiply
    131,063.28x = 180,861.36 × 80,161.26
  4. Step 4: Simplify right side
    131,063.28x = 14,498,074,502.91
  5. Step 5: Solve for x
    x = 14,498,074,502.91/131,063.28
  6. Step 6: Final answer
    x = 110,618.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.