Home / 131,096.30-180,926.76-80,138.85

Finding the Fourth Proportional to 131,096.30, 180,926.76 and 80,138.85

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Solution

The fourth proportional to 131,096.30, 180,926.76 and 80,138.85 is: 110,600.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,096.30 : 180,926.76 = 80,138.85 : x
  2. Step 2: Convert to fraction form
    131,096.30/180,926.76 = 80,138.85/x
  3. Step 3: Cross multiply
    131,096.30x = 180,926.76 × 80,138.85
  4. Step 4: Simplify right side
    131,096.30x = 14,499,262,480.63
  5. Step 5: Solve for x
    x = 14,499,262,480.63/131,096.30
  6. Step 6: Final answer
    x = 110,600.09

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1.5x scale

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.