Home / 211,378.38-317,100.36-71,126.06

Finding the Fourth Proportional to 211,378.38, 317,100.36 and 71,126.06

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Solution

The fourth proportional to 211,378.38, 317,100.36 and 71,126.06 is: 106,700.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,378.38 : 317,100.36 = 71,126.06 : x
  2. Step 2: Convert to fraction form
    211,378.38/317,100.36 = 71,126.06/x
  3. Step 3: Cross multiply
    211,378.38x = 317,100.36 × 71,126.06
  4. Step 4: Simplify right side
    211,378.38x = 22,554,099,231.38
  5. Step 5: Solve for x
    x = 22,554,099,231.38/211,378.38
  6. Step 6: Final answer
    x = 106,700.12

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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.