Home / 211,561.70-317,395.08-104,995.67

Finding the Fourth Proportional to 211,561.70, 317,395.08 and 104,995.67

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Solution

The fourth proportional to 211,561.70, 317,395.08 and 104,995.67 is: 157,519.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,561.70 : 317,395.08 = 104,995.67 : x
  2. Step 2: Convert to fraction form
    211,561.70/317,395.08 = 104,995.67/x
  3. Step 3: Cross multiply
    211,561.70x = 317,395.08 × 104,995.67
  4. Step 4: Simplify right side
    211,561.70x = 33,325,109,610.30
  5. Step 5: Solve for x
    x = 33,325,109,610.30/211,561.70
  6. Step 6: Final answer
    x = 157,519.58

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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.