Home / 441,712.70-662,423.25-142,121.66

Finding the Fourth Proportional to 441,712.70, 662,423.25 and 142,121.66

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Solution

The fourth proportional to 441,712.70, 662,423.25 and 142,121.66 is: 213,135.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,712.70 : 662,423.25 = 142,121.66 : x
  2. Step 2: Convert to fraction form
    441,712.70/662,423.25 = 142,121.66/x
  3. Step 3: Cross multiply
    441,712.70x = 662,423.25 × 142,121.66
  4. Step 4: Simplify right side
    441,712.70x = 94,144,691,912.60
  5. Step 5: Solve for x
    x = 94,144,691,912.60/441,712.70
  6. Step 6: Final answer
    x = 213,135.58

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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.