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Finding the Fourth Proportional to 201,595.78, 278,086.46 and 126,013.06

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Solution

The fourth proportional to 201,595.78, 278,086.46 and 126,013.06 is: 173,825.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,595.78 : 278,086.46 = 126,013.06 : x
  2. Step 2: Convert to fraction form
    201,595.78/278,086.46 = 126,013.06/x
  3. Step 3: Cross multiply
    201,595.78x = 278,086.46 × 126,013.06
  4. Step 4: Simplify right side
    201,595.78x = 35,042,525,769.17
  5. Step 5: Solve for x
    x = 35,042,525,769.17/201,595.78
  6. Step 6: Final answer
    x = 173,825.69

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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.