Home / 193,206.87-289,664.51-126,663.75

Finding the Fourth Proportional to 193,206.87, 289,664.51 and 126,663.75

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Solution

The fourth proportional to 193,206.87, 289,664.51 and 126,663.75 is: 189,900.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,206.87 : 289,664.51 = 126,663.75 : x
  2. Step 2: Convert to fraction form
    193,206.87/289,664.51 = 126,663.75/x
  3. Step 3: Cross multiply
    193,206.87x = 289,664.51 × 126,663.75
  4. Step 4: Simplify right side
    193,206.87x = 36,689,992,445.19
  5. Step 5: Solve for x
    x = 36,689,992,445.19/193,206.87
  6. Step 6: Final answer
    x = 189,900.04

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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.