Home / 321,117.21-481,743.45-121,433.18

Finding the Fourth Proportional to 321,117.21, 481,743.45 and 121,433.18

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Solution

The fourth proportional to 321,117.21, 481,743.45 and 121,433.18 is: 182,175.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,117.21 : 481,743.45 = 121,433.18 : x
  2. Step 2: Convert to fraction form
    321,117.21/481,743.45 = 121,433.18/x
  3. Step 3: Cross multiply
    321,117.21x = 481,743.45 × 121,433.18
  4. Step 4: Simplify right side
    321,117.21x = 58,499,636,213.58
  5. Step 5: Solve for x
    x = 58,499,636,213.58/321,117.21
  6. Step 6: Final answer
    x = 182,175.34

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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.