Home / 254,654.10-351,405.39-139,940.70

Finding the Fourth Proportional to 254,654.10, 351,405.39 and 139,940.70

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Solution

The fourth proportional to 254,654.10, 351,405.39 and 139,940.70 is: 193,108.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,654.10 : 351,405.39 = 139,940.70 : x
  2. Step 2: Convert to fraction form
    254,654.10/351,405.39 = 139,940.70/x
  3. Step 3: Cross multiply
    254,654.10x = 351,405.39 × 139,940.70
  4. Step 4: Simplify right side
    254,654.10x = 49,175,916,260.37
  5. Step 5: Solve for x
    x = 49,175,916,260.37/254,654.10
  6. Step 6: Final answer
    x = 193,108.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.