Home / 211,517.18-317,109.36-104,827.83

Finding the Fourth Proportional to 211,517.18, 317,109.36 and 104,827.83

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Solution

The fourth proportional to 211,517.18, 317,109.36 and 104,827.83 is: 157,159.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,517.18 : 317,109.36 = 104,827.83 : x
  2. Step 2: Convert to fraction form
    211,517.18/317,109.36 = 104,827.83/x
  3. Step 3: Cross multiply
    211,517.18x = 317,109.36 × 104,827.83
  4. Step 4: Simplify right side
    211,517.18x = 33,241,886,081.49
  5. Step 5: Solve for x
    x = 33,241,886,081.49/211,517.18
  6. Step 6: Final answer
    x = 157,159.27

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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.