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Finding the Fourth Proportional to 103,798.35, 155,673.63 and 40,619.97

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Solution

The fourth proportional to 103,798.35, 155,673.63 and 40,619.97 is: 60,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,798.35 : 155,673.63 = 40,619.97 : x
  2. Step 2: Convert to fraction form
    103,798.35/155,673.63 = 40,619.97/x
  3. Step 3: Cross multiply
    103,798.35x = 155,673.63 × 40,619.97
  4. Step 4: Simplify right side
    103,798.35x = 6,323,458,180.39
  5. Step 5: Solve for x
    x = 6,323,458,180.39/103,798.35
  6. Step 6: Final answer
    x = 60,920.60

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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.