Home / 212,050.71-318,067.86-71,809.34

Finding the Fourth Proportional to 212,050.71, 318,067.86 and 71,809.34

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Solution

The fourth proportional to 212,050.71, 318,067.86 and 71,809.34 is: 107,711.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,050.71 : 318,067.86 = 71,809.34 : x
  2. Step 2: Convert to fraction form
    212,050.71/318,067.86 = 71,809.34/x
  3. Step 3: Cross multiply
    212,050.71x = 318,067.86 × 71,809.34
  4. Step 4: Simplify right side
    212,050.71x = 22,840,241,780.76
  5. Step 5: Solve for x
    x = 22,840,241,780.76/212,050.71
  6. Step 6: Final answer
    x = 107,711.23

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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.