Home / 213,050.32-319,562.93-79,919.43

Finding the Fourth Proportional to 213,050.32, 319,562.93 and 79,919.43

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Solution

The fourth proportional to 213,050.32, 319,562.93 and 79,919.43 is: 119,874.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,050.32 : 319,562.93 = 79,919.43 : x
  2. Step 2: Convert to fraction form
    213,050.32/319,562.93 = 79,919.43/x
  3. Step 3: Cross multiply
    213,050.32x = 319,562.93 × 79,919.43
  4. Step 4: Simplify right side
    213,050.32x = 25,539,286,216.17
  5. Step 5: Solve for x
    x = 25,539,286,216.17/213,050.32
  6. Step 6: Final answer
    x = 119,874.43

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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.