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Finding the Fourth Proportional to 133,187.85, 183,801.94 and 72,762.40

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Solution

The fourth proportional to 133,187.85, 183,801.94 and 72,762.40 is: 100,413.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,187.85 : 183,801.94 = 72,762.40 : x
  2. Step 2: Convert to fraction form
    133,187.85/183,801.94 = 72,762.40/x
  3. Step 3: Cross multiply
    133,187.85x = 183,801.94 × 72,762.40
  4. Step 4: Simplify right side
    133,187.85x = 13,373,870,812.93
  5. Step 5: Solve for x
    x = 13,373,870,812.93/133,187.85
  6. Step 6: Final answer
    x = 100,413.59

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.