Home / 154,264.56-231,611-79,438.20

Finding the Fourth Proportional to 154,264.56, 231,611 and 79,438.20

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Solution

The fourth proportional to 154,264.56, 231,611 and 79,438.20 is: 119,267.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,264.56 : 231,611 = 79,438.20 : x
  2. Step 2: Convert to fraction form
    154,264.56/231,611 = 79,438.20/x
  3. Step 3: Cross multiply
    154,264.56x = 231,611 × 79,438.20
  4. Step 4: Simplify right side
    154,264.56x = 18,398,760,940.20
  5. Step 5: Solve for x
    x = 18,398,760,940.20/154,264.56
  6. Step 6: Final answer
    x = 119,267.58

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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.