Home / 137,832.48-190,229.64-84,148.80

Finding the Fourth Proportional to 137,832.48, 190,229.64 and 84,148.80

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Solution

The fourth proportional to 137,832.48, 190,229.64 and 84,148.80 is: 116,138.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,832.48 : 190,229.64 = 84,148.80 : x
  2. Step 2: Convert to fraction form
    137,832.48/190,229.64 = 84,148.80/x
  3. Step 3: Cross multiply
    137,832.48x = 190,229.64 × 84,148.80
  4. Step 4: Simplify right side
    137,832.48x = 16,007,595,930.43
  5. Step 5: Solve for x
    x = 16,007,595,930.43/137,832.48
  6. Step 6: Final answer
    x = 116,138.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.