Home / 201,942.02-302,939.22-68,786.66

Finding the Fourth Proportional to 201,942.02, 302,939.22 and 68,786.66

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Solution

The fourth proportional to 201,942.02, 302,939.22 and 68,786.66 is: 103,188.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,942.02 : 302,939.22 = 68,786.66 : x
  2. Step 2: Convert to fraction form
    201,942.02/302,939.22 = 68,786.66/x
  3. Step 3: Cross multiply
    201,942.02x = 302,939.22 × 68,786.66
  4. Step 4: Simplify right side
    201,942.02x = 20,838,177,126.81
  5. Step 5: Solve for x
    x = 20,838,177,126.81/201,942.02
  6. Step 6: Final answer
    x = 103,188.91

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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.