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Finding the Fourth Proportional to 103,858.23, 155,724.96 and 40,603.01

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Solution

The fourth proportional to 103,858.23, 155,724.96 and 40,603.01 is: 60,880.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,858.23 : 155,724.96 = 40,603.01 : x
  2. Step 2: Convert to fraction form
    103,858.23/155,724.96 = 40,603.01/x
  3. Step 3: Cross multiply
    103,858.23x = 155,724.96 × 40,603.01
  4. Step 4: Simplify right side
    103,858.23x = 6,322,901,481.77
  5. Step 5: Solve for x
    x = 6,322,901,481.77/103,858.23
  6. Step 6: Final answer
    x = 60,880.12

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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.