Home / 149,629.15-206,459.94-89,205.37

Finding the Fourth Proportional to 149,629.15, 206,459.94 and 89,205.37

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Solution

The fourth proportional to 149,629.15, 206,459.94 and 89,205.37 is: 123,086.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,629.15 : 206,459.94 = 89,205.37 : x
  2. Step 2: Convert to fraction form
    149,629.15/206,459.94 = 89,205.37/x
  3. Step 3: Cross multiply
    149,629.15x = 206,459.94 × 89,205.37
  4. Step 4: Simplify right side
    149,629.15x = 18,417,335,337.88
  5. Step 5: Solve for x
    x = 18,417,335,337.88/149,629.15
  6. Step 6: Final answer
    x = 123,086.55

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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.