Home / 139,733.12-209,630.62-50,986.38

Finding the Fourth Proportional to 139,733.12, 209,630.62 and 50,986.38

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Solution

The fourth proportional to 139,733.12, 209,630.62 and 50,986.38 is: 76,490.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,733.12 : 209,630.62 = 50,986.38 : x
  2. Step 2: Convert to fraction form
    139,733.12/209,630.62 = 50,986.38/x
  3. Step 3: Cross multiply
    139,733.12x = 209,630.62 × 50,986.38
  4. Step 4: Simplify right side
    139,733.12x = 10,688,306,450.96
  5. Step 5: Solve for x
    x = 10,688,306,450.96/139,733.12
  6. Step 6: Final answer
    x = 76,490.86

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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.