Home / 211,562.81-317,396.75-104,996.78

Finding the Fourth Proportional to 211,562.81, 317,396.75 and 104,996.78

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Solution

The fourth proportional to 211,562.81, 317,396.75 and 104,996.78 is: 157,521.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,562.81 : 317,396.75 = 104,996.78 : x
  2. Step 2: Convert to fraction form
    211,562.81/317,396.75 = 104,996.78/x
  3. Step 3: Cross multiply
    211,562.81x = 317,396.75 × 104,996.78
  4. Step 4: Simplify right side
    211,562.81x = 33,325,634,620.50
  5. Step 5: Solve for x
    x = 33,325,634,620.50/211,562.81
  6. Step 6: Final answer
    x = 157,521.24

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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.