Home / 131,010.32-180,742.92-80,621.84

Finding the Fourth Proportional to 131,010.32, 180,742.92 and 80,621.84

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Solution

The fourth proportional to 131,010.32, 180,742.92 and 80,621.84 is: 111,226.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,010.32 : 180,742.92 = 80,621.84 : x
  2. Step 2: Convert to fraction form
    131,010.32/180,742.92 = 80,621.84/x
  3. Step 3: Cross multiply
    131,010.32x = 180,742.92 × 80,621.84
  4. Step 4: Simplify right side
    131,010.32x = 14,571,826,777.37
  5. Step 5: Solve for x
    x = 14,571,826,777.37/131,010.32
  6. Step 6: Final answer
    x = 111,226.56

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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.