Home / 149,815.79-206,744.42-81,832.74

Finding the Fourth Proportional to 149,815.79, 206,744.42 and 81,832.74

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Solution

The fourth proportional to 149,815.79, 206,744.42 and 81,832.74 is: 112,928.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,815.79 : 206,744.42 = 81,832.74 : x
  2. Step 2: Convert to fraction form
    149,815.79/206,744.42 = 81,832.74/x
  3. Step 3: Cross multiply
    149,815.79x = 206,744.42 × 81,832.74
  4. Step 4: Simplify right side
    149,815.79x = 16,918,461,959.15
  5. Step 5: Solve for x
    x = 16,918,461,959.15/149,815.79
  6. Step 6: Final answer
    x = 112,928.43

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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.