Home / 154,850.70-231,984.45-79,715.10

Finding the Fourth Proportional to 154,850.70, 231,984.45 and 79,715.10

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Solution

The fourth proportional to 154,850.70, 231,984.45 and 79,715.10 is: 119,422.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,850.70 : 231,984.45 = 79,715.10 : x
  2. Step 2: Convert to fraction form
    154,850.70/231,984.45 = 79,715.10/x
  3. Step 3: Cross multiply
    154,850.70x = 231,984.45 × 79,715.10
  4. Step 4: Simplify right side
    154,850.70x = 18,492,663,630.20
  5. Step 5: Solve for x
    x = 18,492,663,630.20/154,850.70
  6. Step 6: Final answer
    x = 119,422.54

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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.