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Finding the Fourth Proportional to 149,409.86, 223,992.67 and 69,497.65

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Solution

The fourth proportional to 149,409.86, 223,992.67 and 69,497.65 is: 104,189.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,409.86 : 223,992.67 = 69,497.65 : x
  2. Step 2: Convert to fraction form
    149,409.86/223,992.67 = 69,497.65/x
  3. Step 3: Cross multiply
    149,409.86x = 223,992.67 × 69,497.65
  4. Step 4: Simplify right side
    149,409.86x = 15,566,963,593.34
  5. Step 5: Solve for x
    x = 15,566,963,593.34/149,409.86
  6. Step 6: Final answer
    x = 104,189.67

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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.