Home / 139,982.58-209,973.87-51,197.67

Finding the Fourth Proportional to 139,982.58, 209,973.87 and 51,197.67

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Solution

The fourth proportional to 139,982.58, 209,973.87 and 51,197.67 is: 76,796.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,982.58 : 209,973.87 = 51,197.67 : x
  2. Step 2: Convert to fraction form
    139,982.58/209,973.87 = 51,197.67/x
  3. Step 3: Cross multiply
    139,982.58x = 209,973.87 × 51,197.67
  4. Step 4: Simplify right side
    139,982.58x = 10,750,172,904.88
  5. Step 5: Solve for x
    x = 10,750,172,904.88/139,982.58
  6. Step 6: Final answer
    x = 76,796.51

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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.