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Finding the Fourth Proportional to 134,674.50, 201,512.75 and 107,939.40

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Solution

The fourth proportional to 134,674.50, 201,512.75 and 107,939.40 is: 161,509.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,674.50 : 201,512.75 = 107,939.40 : x
  2. Step 2: Convert to fraction form
    134,674.50/201,512.75 = 107,939.40/x
  3. Step 3: Cross multiply
    134,674.50x = 201,512.75 × 107,939.40
  4. Step 4: Simplify right side
    134,674.50x = 21,751,165,327.35
  5. Step 5: Solve for x
    x = 21,751,165,327.35/134,674.50
  6. Step 6: Final answer
    x = 161,509.16

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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.