Home / 139,615.60-209,544.32-73,102.24

Finding the Fourth Proportional to 139,615.60, 209,544.32 and 73,102.24

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Solution

The fourth proportional to 139,615.60, 209,544.32 and 73,102.24 is: 109,716.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,615.60 : 209,544.32 = 73,102.24 : x
  2. Step 2: Convert to fraction form
    139,615.60/209,544.32 = 73,102.24/x
  3. Step 3: Cross multiply
    139,615.60x = 209,544.32 × 73,102.24
  4. Step 4: Simplify right side
    139,615.60x = 15,318,159,171.28
  5. Step 5: Solve for x
    x = 15,318,159,171.28/139,615.60
  6. Step 6: Final answer
    x = 109,716.67

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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.