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Finding the Fourth Proportional to 93,189.89, 139,765.24 and 30,015.67

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Solution

The fourth proportional to 93,189.89, 139,765.24 and 30,015.67 is: 45,017.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,189.89 : 139,765.24 = 30,015.67 : x
  2. Step 2: Convert to fraction form
    93,189.89/139,765.24 = 30,015.67/x
  3. Step 3: Cross multiply
    93,189.89x = 139,765.24 × 30,015.67
  4. Step 4: Simplify right side
    93,189.89x = 4,195,147,321.31
  5. Step 5: Solve for x
    x = 4,195,147,321.31/93,189.89
  6. Step 6: Final answer
    x = 45,017.19

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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.