Home / 211,914.22-317,751.51-69,721.02

Finding the Fourth Proportional to 211,914.22, 317,751.51 and 69,721.02

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Solution

The fourth proportional to 211,914.22, 317,751.51 and 69,721.02 is: 104,542.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,914.22 : 317,751.51 = 69,721.02 : x
  2. Step 2: Convert to fraction form
    211,914.22/317,751.51 = 69,721.02/x
  3. Step 3: Cross multiply
    211,914.22x = 317,751.51 × 69,721.02
  4. Step 4: Simplify right side
    211,914.22x = 22,153,959,383.74
  5. Step 5: Solve for x
    x = 22,153,959,383.74/211,914.22
  6. Step 6: Final answer
    x = 104,542.11

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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.