Home / 131,367.22-181,253.40-80,361.32

Finding the Fourth Proportional to 131,367.22, 181,253.40 and 80,361.32

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Solution

The fourth proportional to 131,367.22, 181,253.40 and 80,361.32 is: 110,878.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,367.22 : 181,253.40 = 80,361.32 : x
  2. Step 2: Convert to fraction form
    131,367.22/181,253.40 = 80,361.32/x
  3. Step 3: Cross multiply
    131,367.22x = 181,253.40 × 80,361.32
  4. Step 4: Simplify right side
    131,367.22x = 14,565,761,270.87
  5. Step 5: Solve for x
    x = 14,565,761,270.87/131,367.22
  6. Step 6: Final answer
    x = 110,878.20

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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.