Home / 193,405.40-290,107.68-109,127.33

Finding the Fourth Proportional to 193,405.40, 290,107.68 and 109,127.33

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Solution

The fourth proportional to 193,405.40, 290,107.68 and 109,127.33 is: 163,690.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,405.40 : 290,107.68 = 109,127.33 : x
  2. Step 2: Convert to fraction form
    193,405.40/290,107.68 = 109,127.33/x
  3. Step 3: Cross multiply
    193,405.40x = 290,107.68 × 109,127.33
  4. Step 4: Simplify right side
    193,405.40x = 31,658,675,080.36
  5. Step 5: Solve for x
    x = 31,658,675,080.36/193,405.40
  6. Step 6: Final answer
    x = 163,690.75

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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.