Home / 208,327.82-312,506.45-103,118.54

Finding the Fourth Proportional to 208,327.82, 312,506.45 and 103,118.54

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Solution

The fourth proportional to 208,327.82, 312,506.45 and 103,118.54 is: 154,685.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,327.82 : 312,506.45 = 103,118.54 : x
  2. Step 2: Convert to fraction form
    208,327.82/312,506.45 = 103,118.54/x
  3. Step 3: Cross multiply
    208,327.82x = 312,506.45 × 103,118.54
  4. Step 4: Simplify right side
    208,327.82x = 32,225,208,348.99
  5. Step 5: Solve for x
    x = 32,225,208,348.99/208,327.82
  6. Step 6: Final answer
    x = 154,685.09

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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.