Home / 149,748.73-206,651.67-81,765.49

Finding the Fourth Proportional to 149,748.73, 206,651.67 and 81,765.49

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Solution

The fourth proportional to 149,748.73, 206,651.67 and 81,765.49 is: 112,835.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,748.73 : 206,651.67 = 81,765.49 : x
  2. Step 2: Convert to fraction form
    149,748.73/206,651.67 = 81,765.49/x
  3. Step 3: Cross multiply
    149,748.73x = 206,651.67 × 81,765.49
  4. Step 4: Simplify right side
    149,748.73x = 16,896,975,056.87
  5. Step 5: Solve for x
    x = 16,896,975,056.87/149,748.73
  6. Step 6: Final answer
    x = 112,835.51

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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.