Home / 234,138.16-323,076.09-137,305.45

Finding the Fourth Proportional to 234,138.16, 323,076.09 and 137,305.45

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Solution

The fourth proportional to 234,138.16, 323,076.09 and 137,305.45 is: 189,461.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,138.16 : 323,076.09 = 137,305.45 : x
  2. Step 2: Convert to fraction form
    234,138.16/323,076.09 = 137,305.45/x
  3. Step 3: Cross multiply
    234,138.16x = 323,076.09 × 137,305.45
  4. Step 4: Simplify right side
    234,138.16x = 44,360,107,921.69
  5. Step 5: Solve for x
    x = 44,360,107,921.69/234,138.16
  6. Step 6: Final answer
    x = 189,461.25

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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.