Home / 188,327.78-282,491.16-68,384.50

Finding the Fourth Proportional to 188,327.78, 282,491.16 and 68,384.50

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Solution

The fourth proportional to 188,327.78, 282,491.16 and 68,384.50 is: 102,576.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,327.78 : 282,491.16 = 68,384.50 : x
  2. Step 2: Convert to fraction form
    188,327.78/282,491.16 = 68,384.50/x
  3. Step 3: Cross multiply
    188,327.78x = 282,491.16 × 68,384.50
  4. Step 4: Simplify right side
    188,327.78x = 19,318,016,731.02
  5. Step 5: Solve for x
    x = 19,318,016,731.02/188,327.78
  6. Step 6: Final answer
    x = 102,576.56

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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.