Home / 201,046.72-301,570.19-126,219.42

Finding the Fourth Proportional to 201,046.72, 301,570.19 and 126,219.42

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Solution

The fourth proportional to 201,046.72, 301,570.19 and 126,219.42 is: 189,329.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,046.72 : 301,570.19 = 126,219.42 : x
  2. Step 2: Convert to fraction form
    201,046.72/301,570.19 = 126,219.42/x
  3. Step 3: Cross multiply
    201,046.72x = 301,570.19 × 126,219.42
  4. Step 4: Simplify right side
    201,046.72x = 38,064,013,182.43
  5. Step 5: Solve for x
    x = 38,064,013,182.43/201,046.72
  6. Step 6: Final answer
    x = 189,329.20

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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.