Home / 137,833.48-190,231.02-84,149.80

Finding the Fourth Proportional to 137,833.48, 190,231.02 and 84,149.80

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Solution

The fourth proportional to 137,833.48, 190,231.02 and 84,149.80 is: 116,139.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,833.48 : 190,231.02 = 84,149.80 : x
  2. Step 2: Convert to fraction form
    137,833.48/190,231.02 = 84,149.80/x
  3. Step 3: Cross multiply
    137,833.48x = 190,231.02 × 84,149.80
  4. Step 4: Simplify right side
    137,833.48x = 16,007,902,286.80
  5. Step 5: Solve for x
    x = 16,007,902,286.80/137,833.48
  6. Step 6: Final answer
    x = 116,139.43

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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.