Home / 137,880.96-190,296.44-84,196.94

Finding the Fourth Proportional to 137,880.96, 190,296.44 and 84,196.94

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Solution

The fourth proportional to 137,880.96, 190,296.44 and 84,196.94 is: 116,204.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,880.96 : 190,296.44 = 84,196.94 : x
  2. Step 2: Convert to fraction form
    137,880.96/190,296.44 = 84,196.94/x
  3. Step 3: Cross multiply
    137,880.96x = 190,296.44 × 84,196.94
  4. Step 4: Simplify right side
    137,880.96x = 16,022,377,940.89
  5. Step 5: Solve for x
    x = 16,022,377,940.89/137,880.96
  6. Step 6: Final answer
    x = 116,204.43

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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.