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Finding the Fourth Proportional to 133,477.20, 199,924.20 and 103,661.10

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Solution

The fourth proportional to 133,477.20, 199,924.20 and 103,661.10 is: 155,265.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,477.20 : 199,924.20 = 103,661.10 : x
  2. Step 2: Convert to fraction form
    133,477.20/199,924.20 = 103,661.10/x
  3. Step 3: Cross multiply
    133,477.20x = 199,924.20 × 103,661.10
  4. Step 4: Simplify right side
    133,477.20x = 20,724,362,488.62
  5. Step 5: Solve for x
    x = 20,724,362,488.62/133,477.20
  6. Step 6: Final answer
    x = 155,265.19

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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.