Home / 211,693.10-317,567.79-111,857.36

Finding the Fourth Proportional to 211,693.10, 317,567.79 and 111,857.36

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Solution

The fourth proportional to 211,693.10, 317,567.79 and 111,857.36 is: 167,800.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,693.10 : 317,567.79 = 111,857.36 : x
  2. Step 2: Convert to fraction form
    211,693.10/317,567.79 = 111,857.36/x
  3. Step 3: Cross multiply
    211,693.10x = 317,567.79 × 111,857.36
  4. Step 4: Simplify right side
    211,693.10x = 35,522,293,022.60
  5. Step 5: Solve for x
    x = 35,522,293,022.60/211,693.10
  6. Step 6: Final answer
    x = 167,800.91

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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.