Home / 107,331.20-161,007.83-28,445.43

Finding the Fourth Proportional to 107,331.20, 161,007.83 and 28,445.43

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Solution

The fourth proportional to 107,331.20, 161,007.83 and 28,445.43 is: 42,671.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,331.20 : 161,007.83 = 28,445.43 : x
  2. Step 2: Convert to fraction form
    107,331.20/161,007.83 = 28,445.43/x
  3. Step 3: Cross multiply
    107,331.20x = 161,007.83 × 28,445.43
  4. Step 4: Simplify right side
    107,331.20x = 4,579,936,815.49
  5. Step 5: Solve for x
    x = 4,579,936,815.49/107,331.20
  6. Step 6: Final answer
    x = 42,671.07

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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.