Home / 193,406.28-290,075.74-53,131.56

Finding the Fourth Proportional to 193,406.28, 290,075.74 and 53,131.56

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Solution

The fourth proportional to 193,406.28, 290,075.74 and 53,131.56 is: 79,688.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,406.28 : 290,075.74 = 53,131.56 : x
  2. Step 2: Convert to fraction form
    193,406.28/290,075.74 = 53,131.56/x
  3. Step 3: Cross multiply
    193,406.28x = 290,075.74 × 53,131.56
  4. Step 4: Simplify right side
    193,406.28x = 15,412,176,584.35
  5. Step 5: Solve for x
    x = 15,412,176,584.35/193,406.28
  6. Step 6: Final answer
    x = 79,688.09

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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.