Home / 149,670.30-206,571.36-89,244.66

Finding the Fourth Proportional to 149,670.30, 206,571.36 and 89,244.66

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Solution

The fourth proportional to 149,670.30, 206,571.36 and 89,244.66 is: 123,173.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,670.30 : 206,571.36 = 89,244.66 : x
  2. Step 2: Convert to fraction form
    149,670.30/206,571.36 = 89,244.66/x
  3. Step 3: Cross multiply
    149,670.30x = 206,571.36 × 89,244.66
  4. Step 4: Simplify right side
    149,670.30x = 18,435,390,788.94
  5. Step 5: Solve for x
    x = 18,435,390,788.94/149,670.30
  6. Step 6: Final answer
    x = 123,173.34

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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.