Home / 133,021.68-199,420.16-61,907.62

Finding the Fourth Proportional to 133,021.68, 199,420.16 and 61,907.62

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Solution

The fourth proportional to 133,021.68, 199,420.16 and 61,907.62 is: 92,809.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,021.68 : 199,420.16 = 61,907.62 : x
  2. Step 2: Convert to fraction form
    133,021.68/199,420.16 = 61,907.62/x
  3. Step 3: Cross multiply
    133,021.68x = 199,420.16 × 61,907.62
  4. Step 4: Simplify right side
    133,021.68x = 12,345,627,485.62
  5. Step 5: Solve for x
    x = 12,345,627,485.62/133,021.68
  6. Step 6: Final answer
    x = 92,809.14

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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.