Home / 212,006.84-318,067.65-71,765.46

Finding the Fourth Proportional to 212,006.84, 318,067.65 and 71,765.46

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Solution

The fourth proportional to 212,006.84, 318,067.65 and 71,765.46 is: 107,667.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,006.84 : 318,067.65 = 71,765.46 : x
  2. Step 2: Convert to fraction form
    212,006.84/318,067.65 = 71,765.46/x
  3. Step 3: Cross multiply
    212,006.84x = 318,067.65 × 71,765.46
  4. Step 4: Simplify right side
    212,006.84x = 22,826,271,213.37
  5. Step 5: Solve for x
    x = 22,826,271,213.37/212,006.84
  6. Step 6: Final answer
    x = 107,667.62

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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.