Home / 154,262.56-231,608-79,436.20

Finding the Fourth Proportional to 154,262.56, 231,608 and 79,436.20

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Solution

The fourth proportional to 154,262.56, 231,608 and 79,436.20 is: 119,264.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,262.56 : 231,608 = 79,436.20 : x
  2. Step 2: Convert to fraction form
    154,262.56/231,608 = 79,436.20/x
  3. Step 3: Cross multiply
    154,262.56x = 231,608 × 79,436.20
  4. Step 4: Simplify right side
    154,262.56x = 18,398,059,409.60
  5. Step 5: Solve for x
    x = 18,398,059,409.60/154,262.56
  6. Step 6: Final answer
    x = 119,264.58

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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.