Home / 149,660.45-206,533.16-89,265.43

Finding the Fourth Proportional to 149,660.45, 206,533.16 and 89,265.43

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Solution

The fourth proportional to 149,660.45, 206,533.16 and 89,265.43 is: 123,187.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,660.45 : 206,533.16 = 89,265.43 : x
  2. Step 2: Convert to fraction form
    149,660.45/206,533.16 = 89,265.43/x
  3. Step 3: Cross multiply
    149,660.45x = 206,533.16 × 89,265.43
  4. Step 4: Simplify right side
    149,660.45x = 18,436,271,336.66
  5. Step 5: Solve for x
    x = 18,436,271,336.66/149,660.45
  6. Step 6: Final answer
    x = 123,187.33

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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.