Home / 154,161.36-231,073.13-79,285.46

Finding the Fourth Proportional to 154,161.36, 231,073.13 and 79,285.46

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Solution

The fourth proportional to 154,161.36, 231,073.13 and 79,285.46 is: 118,841.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,161.36 : 231,073.13 = 79,285.46 : x
  2. Step 2: Convert to fraction form
    154,161.36/231,073.13 = 79,285.46/x
  3. Step 3: Cross multiply
    154,161.36x = 231,073.13 × 79,285.46
  4. Step 4: Simplify right side
    154,161.36x = 18,320,739,405.69
  5. Step 5: Solve for x
    x = 18,320,739,405.69/154,161.36
  6. Step 6: Final answer
    x = 118,841.32

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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.