Home / 149,661.54-206,559.27-89,235.90

Finding the Fourth Proportional to 149,661.54, 206,559.27 and 89,235.90

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Solution

The fourth proportional to 149,661.54, 206,559.27 and 89,235.90 is: 123,161.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,661.54 : 206,559.27 = 89,235.90 : x
  2. Step 2: Convert to fraction form
    149,661.54/206,559.27 = 89,235.90/x
  3. Step 3: Cross multiply
    149,661.54x = 206,559.27 × 89,235.90
  4. Step 4: Simplify right side
    149,661.54x = 18,432,502,361.79
  5. Step 5: Solve for x
    x = 18,432,502,361.79/149,661.54
  6. Step 6: Final answer
    x = 123,161.25

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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.