Home / 146,043.75-201,540.39-78,975.75

Finding the Fourth Proportional to 146,043.75, 201,540.39 and 78,975.75

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Solution

The fourth proportional to 146,043.75, 201,540.39 and 78,975.75 is: 108,986.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,043.75 : 201,540.39 = 78,975.75 : x
  2. Step 2: Convert to fraction form
    146,043.75/201,540.39 = 78,975.75/x
  3. Step 3: Cross multiply
    146,043.75x = 201,540.39 × 78,975.75
  4. Step 4: Simplify right side
    146,043.75x = 15,916,803,455.54
  5. Step 5: Solve for x
    x = 15,916,803,455.54/146,043.75
  6. Step 6: Final answer
    x = 108,986.54

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1.5x scale

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.