Home / 193,142.25-288,538.53-125,120.56

Finding the Fourth Proportional to 193,142.25, 288,538.53 and 125,120.56

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Solution

The fourth proportional to 193,142.25, 288,538.53 and 125,120.56 is: 186,919.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,142.25 : 288,538.53 = 125,120.56 : x
  2. Step 2: Convert to fraction form
    193,142.25/288,538.53 = 125,120.56/x
  3. Step 3: Cross multiply
    193,142.25x = 288,538.53 × 125,120.56
  4. Step 4: Simplify right side
    193,142.25x = 36,102,102,563.30
  5. Step 5: Solve for x
    x = 36,102,102,563.30/193,142.25
  6. Step 6: Final answer
    x = 186,919.76

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1.5x scale

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.