Home / 234,138.38-323,111.93-126,708.39

Finding the Fourth Proportional to 234,138.38, 323,111.93 and 126,708.39

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Solution

The fourth proportional to 234,138.38, 323,111.93 and 126,708.39 is: 174,858.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,138.38 : 323,111.93 = 126,708.39 : x
  2. Step 2: Convert to fraction form
    234,138.38/323,111.93 = 126,708.39/x
  3. Step 3: Cross multiply
    234,138.38x = 323,111.93 × 126,708.39
  4. Step 4: Simplify right side
    234,138.38x = 40,940,991,806.55
  5. Step 5: Solve for x
    x = 40,940,991,806.55/234,138.38
  6. Step 6: Final answer
    x = 174,858.10

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1.5x scale

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.