Home / 343,369.20-515,132.10-106,735.80

Finding the Fourth Proportional to 343,369.20, 515,132.10 and 106,735.80

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Solution

The fourth proportional to 343,369.20, 515,132.10 and 106,735.80 is: 160,128.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,369.20 : 515,132.10 = 106,735.80 : x
  2. Step 2: Convert to fraction form
    343,369.20/515,132.10 = 106,735.80/x
  3. Step 3: Cross multiply
    343,369.20x = 515,132.10 × 106,735.80
  4. Step 4: Simplify right side
    343,369.20x = 54,983,036,799.18
  5. Step 5: Solve for x
    x = 54,983,036,799.18/343,369.20
  6. Step 6: Final answer
    x = 160,128.04

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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.