Home / 154,665.20-231,706.20-79,529.60

Finding the Fourth Proportional to 154,665.20, 231,706.20 and 79,529.60

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Solution

The fourth proportional to 154,665.20, 231,706.20 and 79,529.60 is: 119,144.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,665.20 : 231,706.20 = 79,529.60 : x
  2. Step 2: Convert to fraction form
    154,665.20/231,706.20 = 79,529.60/x
  3. Step 3: Cross multiply
    154,665.20x = 231,706.20 × 79,529.60
  4. Step 4: Simplify right side
    154,665.20x = 18,427,501,403.52
  5. Step 5: Solve for x
    x = 18,427,501,403.52/154,665.20
  6. Step 6: Final answer
    x = 119,144.46

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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.