Home / 204,057.10-306,128.85-61,890.70

Finding the Fourth Proportional to 204,057.10, 306,128.85 and 61,890.70

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Solution

The fourth proportional to 204,057.10, 306,128.85 and 61,890.70 is: 92,849.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,057.10 : 306,128.85 = 61,890.70 : x
  2. Step 2: Convert to fraction form
    204,057.10/306,128.85 = 61,890.70/x
  3. Step 3: Cross multiply
    204,057.10x = 306,128.85 × 61,890.70
  4. Step 4: Simplify right side
    204,057.10x = 18,946,528,816.70
  5. Step 5: Solve for x
    x = 18,946,528,816.70/204,057.10
  6. Step 6: Final answer
    x = 92,849.15

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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.