Home / 154,131.36-231,195.96-79,272.38

Finding the Fourth Proportional to 154,131.36, 231,195.96 and 79,272.38

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Solution

The fourth proportional to 154,131.36, 231,195.96 and 79,272.38 is: 118,908.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,131.36 : 231,195.96 = 79,272.38 : x
  2. Step 2: Convert to fraction form
    154,131.36/231,195.96 = 79,272.38/x
  3. Step 3: Cross multiply
    154,131.36x = 231,195.96 × 79,272.38
  4. Step 4: Simplify right side
    154,131.36x = 18,327,453,995.58
  5. Step 5: Solve for x
    x = 18,327,453,995.58/154,131.36
  6. Step 6: Final answer
    x = 118,908.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.