Home / 211,215.23-316,893.57-69,067.06

Finding the Fourth Proportional to 211,215.23, 316,893.57 and 69,067.06

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Solution

The fourth proportional to 211,215.23, 316,893.57 and 69,067.06 is: 103,623.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,215.23 : 316,893.57 = 69,067.06 : x
  2. Step 2: Convert to fraction form
    211,215.23/316,893.57 = 69,067.06/x
  3. Step 3: Cross multiply
    211,215.23x = 316,893.57 × 69,067.06
  4. Step 4: Simplify right side
    211,215.23x = 21,886,905,628.34
  5. Step 5: Solve for x
    x = 21,886,905,628.34/211,215.23
  6. Step 6: Final answer
    x = 103,623.71

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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.