Home / 137,625.40-206,243.70-84,878.20

Finding the Fourth Proportional to 137,625.40, 206,243.70 and 84,878.20

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Solution

The fourth proportional to 137,625.40, 206,243.70 and 84,878.20 is: 127,197.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,625.40 : 206,243.70 = 84,878.20 : x
  2. Step 2: Convert to fraction form
    137,625.40/206,243.70 = 84,878.20/x
  3. Step 3: Cross multiply
    137,625.40x = 206,243.70 × 84,878.20
  4. Step 4: Simplify right side
    137,625.40x = 17,505,594,017.34
  5. Step 5: Solve for x
    x = 17,505,594,017.34/137,625.40
  6. Step 6: Final answer
    x = 127,197.41

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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.