Home / 139,890.24-209,653.92-56,738.88

Finding the Fourth Proportional to 139,890.24, 209,653.92 and 56,738.88

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Solution

The fourth proportional to 139,890.24, 209,653.92 and 56,738.88 is: 85,034.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,890.24 : 209,653.92 = 56,738.88 : x
  2. Step 2: Convert to fraction form
    139,890.24/209,653.92 = 56,738.88/x
  3. Step 3: Cross multiply
    139,890.24x = 209,653.92 × 56,738.88
  4. Step 4: Simplify right side
    139,890.24x = 11,895,528,608.41
  5. Step 5: Solve for x
    x = 11,895,528,608.41/139,890.24
  6. Step 6: Final answer
    x = 85,034.73

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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.