Home / 154,610.45-231,943.35-79,710.48

Finding the Fourth Proportional to 154,610.45, 231,943.35 and 79,710.48

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Solution

The fourth proportional to 154,610.45, 231,943.35 and 79,710.48 is: 119,579.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,610.45 : 231,943.35 = 79,710.48 : x
  2. Step 2: Convert to fraction form
    154,610.45/231,943.35 = 79,710.48/x
  3. Step 3: Cross multiply
    154,610.45x = 231,943.35 × 79,710.48
  4. Step 4: Simplify right side
    154,610.45x = 18,488,315,611.85
  5. Step 5: Solve for x
    x = 18,488,315,611.85/154,610.45
  6. Step 6: Final answer
    x = 119,579.99

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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.