Home / 149,723.60-206,615.22-81,737.94

Finding the Fourth Proportional to 149,723.60, 206,615.22 and 81,737.94

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Solution

The fourth proportional to 149,723.60, 206,615.22 and 81,737.94 is: 112,796.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,723.60 : 206,615.22 = 81,737.94 : x
  2. Step 2: Convert to fraction form
    149,723.60/206,615.22 = 81,737.94/x
  3. Step 3: Cross multiply
    149,723.60x = 206,615.22 × 81,737.94
  4. Step 4: Simplify right side
    149,723.60x = 16,888,302,455.45
  5. Step 5: Solve for x
    x = 16,888,302,455.45/149,723.60
  6. Step 6: Final answer
    x = 112,796.53

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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.