Home / 234,138.48-323,111.08-126,708.51

Finding the Fourth Proportional to 234,138.48, 323,111.08 and 126,708.51

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Solution

The fourth proportional to 234,138.48, 323,111.08 and 126,708.51 is: 174,857.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,138.48 : 323,111.08 = 126,708.51 : x
  2. Step 2: Convert to fraction form
    234,138.48/323,111.08 = 126,708.51/x
  3. Step 3: Cross multiply
    234,138.48x = 323,111.08 × 126,708.51
  4. Step 4: Simplify right side
    234,138.48x = 40,940,923,511.29
  5. Step 5: Solve for x
    x = 40,940,923,511.29/234,138.48
  6. Step 6: Final answer
    x = 174,857.73

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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.