Home / 194,256.80-291,212.40-115,287.20

Finding the Fourth Proportional to 194,256.80, 291,212.40 and 115,287.20

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Solution

The fourth proportional to 194,256.80, 291,212.40 and 115,287.20 is: 172,828.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,256.80 : 291,212.40 = 115,287.20 : x
  2. Step 2: Convert to fraction form
    194,256.80/291,212.40 = 115,287.20/x
  3. Step 3: Cross multiply
    194,256.80x = 291,212.40 × 115,287.20
  4. Step 4: Simplify right side
    194,256.80x = 33,573,062,201.28
  5. Step 5: Solve for x
    x = 33,573,062,201.28/194,256.80
  6. Step 6: Final answer
    x = 172,828.25

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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.