Home / 476,105.80-714,162.74-121,120.12

Finding the Fourth Proportional to 476,105.80, 714,162.74 and 121,120.12

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Solution

The fourth proportional to 476,105.80, 714,162.74 and 121,120.12 is: 181,681.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,105.80 : 714,162.74 = 121,120.12 : x
  2. Step 2: Convert to fraction form
    476,105.80/714,162.74 = 121,120.12/x
  3. Step 3: Cross multiply
    476,105.80x = 714,162.74 × 121,120.12
  4. Step 4: Simplify right side
    476,105.80x = 86,499,476,768.33
  5. Step 5: Solve for x
    x = 86,499,476,768.33/476,105.80
  6. Step 6: Final answer
    x = 181,681.21

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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.