Home / 128,295.22-192,450.72-49,409.72

Finding the Fourth Proportional to 128,295.22, 192,450.72 and 49,409.72

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Solution

The fourth proportional to 128,295.22, 192,450.72 and 49,409.72 is: 74,117.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,295.22 : 192,450.72 = 49,409.72 : x
  2. Step 2: Convert to fraction form
    128,295.22/192,450.72 = 49,409.72/x
  3. Step 3: Cross multiply
    128,295.22x = 192,450.72 × 49,409.72
  4. Step 4: Simplify right side
    128,295.22x = 9,508,936,189.00
  5. Step 5: Solve for x
    x = 9,508,936,189.00/128,295.22
  6. Step 6: Final answer
    x = 74,117.62

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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.