Home / 193,132.20-289,439.10-137,663.40

Finding the Fourth Proportional to 193,132.20, 289,439.10 and 137,663.40

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Solution

The fourth proportional to 193,132.20, 289,439.10 and 137,663.40 is: 206,310.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,132.20 : 289,439.10 = 137,663.40 : x
  2. Step 2: Convert to fraction form
    193,132.20/289,439.10 = 137,663.40/x
  3. Step 3: Cross multiply
    193,132.20x = 289,439.10 × 137,663.40
  4. Step 4: Simplify right side
    193,132.20x = 39,845,170,598.94
  5. Step 5: Solve for x
    x = 39,845,170,598.94/193,132.20
  6. Step 6: Final answer
    x = 206,310.34

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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.