Home / 129,714.36-179,003.43-73,125.78

Finding the Fourth Proportional to 129,714.36, 179,003.43 and 73,125.78

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Solution

The fourth proportional to 129,714.36, 179,003.43 and 73,125.78 is: 100,912.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,714.36 : 179,003.43 = 73,125.78 : x
  2. Step 2: Convert to fraction form
    129,714.36/179,003.43 = 73,125.78/x
  3. Step 3: Cross multiply
    129,714.36x = 179,003.43 × 73,125.78
  4. Step 4: Simplify right side
    129,714.36x = 13,089,765,441.43
  5. Step 5: Solve for x
    x = 13,089,765,441.43/129,714.36
  6. Step 6: Final answer
    x = 100,912.23

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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.