Home / 201,054.35-277,517.29-129,434.38

Finding the Fourth Proportional to 201,054.35, 277,517.29 and 129,434.38

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Solution

The fourth proportional to 201,054.35, 277,517.29 and 129,434.38 is: 178,659.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,054.35 : 277,517.29 = 129,434.38 : x
  2. Step 2: Convert to fraction form
    201,054.35/277,517.29 = 129,434.38/x
  3. Step 3: Cross multiply
    201,054.35x = 277,517.29 × 129,434.38
  4. Step 4: Simplify right side
    201,054.35x = 35,920,276,982.84
  5. Step 5: Solve for x
    x = 35,920,276,982.84/201,054.35
  6. Step 6: Final answer
    x = 178,659.54

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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.