Home / 154,401.36-231,645.78-79,576.08

Finding the Fourth Proportional to 154,401.36, 231,645.78 and 79,576.08

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Solution

The fourth proportional to 154,401.36, 231,645.78 and 79,576.08 is: 119,386.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,401.36 : 231,645.78 = 79,576.08 : x
  2. Step 2: Convert to fraction form
    154,401.36/231,645.78 = 79,576.08/x
  3. Step 3: Cross multiply
    154,401.36x = 231,645.78 × 79,576.08
  4. Step 4: Simplify right side
    154,401.36x = 18,433,463,120.94
  5. Step 5: Solve for x
    x = 18,433,463,120.94/154,401.36
  6. Step 6: Final answer
    x = 119,386.66

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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.