Home / 148,989.33-205,604.57-87,771.11

Finding the Fourth Proportional to 148,989.33, 205,604.57 and 87,771.11

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Solution

The fourth proportional to 148,989.33, 205,604.57 and 87,771.11 is: 121,123.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,989.33 : 205,604.57 = 87,771.11 : x
  2. Step 2: Convert to fraction form
    148,989.33/205,604.57 = 87,771.11/x
  3. Step 3: Cross multiply
    148,989.33x = 205,604.57 × 87,771.11
  4. Step 4: Simplify right side
    148,989.33x = 18,046,139,863.09
  5. Step 5: Solve for x
    x = 18,046,139,863.09/148,989.33
  6. Step 6: Final answer
    x = 121,123.71

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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.