Home / 131,644.76-181,657.44-80,634.20

Finding the Fourth Proportional to 131,644.76, 181,657.44 and 80,634.20

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Solution

The fourth proportional to 131,644.76, 181,657.44 and 80,634.20 is: 111,267.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,644.76 : 181,657.44 = 80,634.20 : x
  2. Step 2: Convert to fraction form
    131,644.76/181,657.44 = 80,634.20/x
  3. Step 3: Cross multiply
    131,644.76x = 181,657.44 × 80,634.20
  4. Step 4: Simplify right side
    131,644.76x = 14,647,802,348.45
  5. Step 5: Solve for x
    x = 14,647,802,348.45/131,644.76
  6. Step 6: Final answer
    x = 111,267.64

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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.