Home / 149,150.36-205,825.32-82,082.36

Finding the Fourth Proportional to 149,150.36, 205,825.32 and 82,082.36

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Solution

The fourth proportional to 149,150.36, 205,825.32 and 82,082.36 is: 113,272.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,150.36 : 205,825.32 = 82,082.36 : x
  2. Step 2: Convert to fraction form
    149,150.36/205,825.32 = 82,082.36/x
  3. Step 3: Cross multiply
    149,150.36x = 205,825.32 × 82,082.36
  4. Step 4: Simplify right side
    149,150.36x = 16,894,626,984.23
  5. Step 5: Solve for x
    x = 16,894,626,984.23/149,150.36
  6. Step 6: Final answer
    x = 113,272.46

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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.