Home / 148,989.38-205,604.73-85,325.81

Finding the Fourth Proportional to 148,989.38, 205,604.73 and 85,325.81

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Solution

The fourth proportional to 148,989.38, 205,604.73 and 85,325.81 is: 117,749.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,989.38 : 205,604.73 = 85,325.81 : x
  2. Step 2: Convert to fraction form
    148,989.38/205,604.73 = 85,325.81/x
  3. Step 3: Cross multiply
    148,989.38x = 205,604.73 × 85,325.81
  4. Step 4: Simplify right side
    148,989.38x = 17,543,389,099.06
  5. Step 5: Solve for x
    x = 17,543,389,099.06/148,989.38
  6. Step 6: Final answer
    x = 117,749.26

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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.