Home / 193,379.23-289,983.21-103,400.11

Finding the Fourth Proportional to 193,379.23, 289,983.21 and 103,400.11

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Solution

The fourth proportional to 193,379.23, 289,983.21 and 103,400.11 is: 155,054.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,379.23 : 289,983.21 = 103,400.11 : x
  2. Step 2: Convert to fraction form
    193,379.23/289,983.21 = 103,400.11/x
  3. Step 3: Cross multiply
    193,379.23x = 289,983.21 × 103,400.11
  4. Step 4: Simplify right side
    193,379.23x = 29,984,295,812.15
  5. Step 5: Solve for x
    x = 29,984,295,812.15/193,379.23
  6. Step 6: Final answer
    x = 155,054.38

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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.