Home / 149,789.54-206,614.64-113,900.87

Finding the Fourth Proportional to 149,789.54, 206,614.64 and 113,900.87

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Solution

The fourth proportional to 149,789.54, 206,614.64 and 113,900.87 is: 157,111.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,789.54 : 206,614.64 = 113,900.87 : x
  2. Step 2: Convert to fraction form
    149,789.54/206,614.64 = 113,900.87/x
  3. Step 3: Cross multiply
    149,789.54x = 206,614.64 × 113,900.87
  4. Step 4: Simplify right side
    149,789.54x = 23,533,585,648.16
  5. Step 5: Solve for x
    x = 23,533,585,648.16/149,789.54
  6. Step 6: Final answer
    x = 157,111.01

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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.