Home / 211,540.22-317,393.40-93,128.48

Finding the Fourth Proportional to 211,540.22, 317,393.40 and 93,128.48

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Solution

The fourth proportional to 211,540.22, 317,393.40 and 93,128.48 is: 139,729.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,540.22 : 317,393.40 = 93,128.48 : x
  2. Step 2: Convert to fraction form
    211,540.22/317,393.40 = 93,128.48/x
  3. Step 3: Cross multiply
    211,540.22x = 317,393.40 × 93,128.48
  4. Step 4: Simplify right side
    211,540.22x = 29,558,364,904.03
  5. Step 5: Solve for x
    x = 29,558,364,904.03/211,540.22
  6. Step 6: Final answer
    x = 139,729.29

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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.