Home / 149,418.79-206,205.23-84,028.20

Finding the Fourth Proportional to 149,418.79, 206,205.23 and 84,028.20

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Solution

The fourth proportional to 149,418.79, 206,205.23 and 84,028.20 is: 115,963.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,418.79 : 206,205.23 = 84,028.20 : x
  2. Step 2: Convert to fraction form
    149,418.79/206,205.23 = 84,028.20/x
  3. Step 3: Cross multiply
    149,418.79x = 206,205.23 × 84,028.20
  4. Step 4: Simplify right side
    149,418.79x = 17,327,053,271.63
  5. Step 5: Solve for x
    x = 17,327,053,271.63/149,418.79
  6. Step 6: Final answer
    x = 115,963.02

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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.