Home / 188,731.72-283,010.10-70,371.28

Finding the Fourth Proportional to 188,731.72, 283,010.10 and 70,371.28

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Solution

The fourth proportional to 188,731.72, 283,010.10 and 70,371.28 is: 105,524.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,731.72 : 283,010.10 = 70,371.28 : x
  2. Step 2: Convert to fraction form
    188,731.72/283,010.10 = 70,371.28/x
  3. Step 3: Cross multiply
    188,731.72x = 283,010.10 × 70,371.28
  4. Step 4: Simplify right side
    188,731.72x = 19,915,784,138.23
  5. Step 5: Solve for x
    x = 19,915,784,138.23/188,731.72
  6. Step 6: Final answer
    x = 105,524.31

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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.