Home / 193,381.36-290,075.24-53,139.12

Finding the Fourth Proportional to 193,381.36, 290,075.24 and 53,139.12

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Solution

The fourth proportional to 193,381.36, 290,075.24 and 53,139.12 is: 79,709.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,381.36 : 290,075.24 = 53,139.12 : x
  2. Step 2: Convert to fraction form
    193,381.36/290,075.24 = 53,139.12/x
  3. Step 3: Cross multiply
    193,381.36x = 290,075.24 × 53,139.12
  4. Step 4: Simplify right side
    193,381.36x = 15,414,342,987.39
  5. Step 5: Solve for x
    x = 15,414,342,987.39/193,381.36
  6. Step 6: Final answer
    x = 79,709.56

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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.