Home / 114,639.20-170,912.30-111,725.87

Finding the Fourth Proportional to 114,639.20, 170,912.30 and 111,725.87

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Solution

The fourth proportional to 114,639.20, 170,912.30 and 111,725.87 is: 166,568.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,639.20 : 170,912.30 = 111,725.87 : x
  2. Step 2: Convert to fraction form
    114,639.20/170,912.30 = 111,725.87/x
  3. Step 3: Cross multiply
    114,639.20x = 170,912.30 × 111,725.87
  4. Step 4: Simplify right side
    114,639.20x = 19,095,323,998.01
  5. Step 5: Solve for x
    x = 19,095,323,998.01/114,639.20
  6. Step 6: Final answer
    x = 166,568.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.