Home / 103,792.07-155,688.26-28,912.43

Finding the Fourth Proportional to 103,792.07, 155,688.26 and 28,912.43

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Solution

The fourth proportional to 103,792.07, 155,688.26 and 28,912.43 is: 43,368.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,792.07 : 155,688.26 = 28,912.43 : x
  2. Step 2: Convert to fraction form
    103,792.07/155,688.26 = 28,912.43/x
  3. Step 3: Cross multiply
    103,792.07x = 155,688.26 × 28,912.43
  4. Step 4: Simplify right side
    103,792.07x = 4,501,326,163.73
  5. Step 5: Solve for x
    x = 4,501,326,163.73/103,792.07
  6. Step 6: Final answer
    x = 43,368.69

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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.