Home / 193,131.20-289,437.60-137,662.40

Finding the Fourth Proportional to 193,131.20, 289,437.60 and 137,662.40

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Solution

The fourth proportional to 193,131.20, 289,437.60 and 137,662.40 is: 206,308.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,131.20 : 289,437.60 = 137,662.40 : x
  2. Step 2: Convert to fraction form
    193,131.20/289,437.60 = 137,662.40/x
  3. Step 3: Cross multiply
    193,131.20x = 289,437.60 × 137,662.40
  4. Step 4: Simplify right side
    193,131.20x = 39,844,674,666.24
  5. Step 5: Solve for x
    x = 39,844,674,666.24/193,131.20
  6. Step 6: Final answer
    x = 206,308.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.