Home / 204,068.46-306,105.78-77,715.70

Finding the Fourth Proportional to 204,068.46, 306,105.78 and 77,715.70

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Solution

The fourth proportional to 204,068.46, 306,105.78 and 77,715.70 is: 116,574.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,068.46 : 306,105.78 = 77,715.70 : x
  2. Step 2: Convert to fraction form
    204,068.46/306,105.78 = 77,715.70/x
  3. Step 3: Cross multiply
    204,068.46x = 306,105.78 × 77,715.70
  4. Step 4: Simplify right side
    204,068.46x = 23,789,224,201.48
  5. Step 5: Solve for x
    x = 23,789,224,201.48/204,068.46
  6. Step 6: Final answer
    x = 116,574.72

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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.