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Finding the Fourth Proportional to 116,004.40, 174,006.60 and 76,638.40

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Solution

The fourth proportional to 116,004.40, 174,006.60 and 76,638.40 is: 114,957.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,004.40 : 174,006.60 = 76,638.40 : x
  2. Step 2: Convert to fraction form
    116,004.40/174,006.60 = 76,638.40/x
  3. Step 3: Cross multiply
    116,004.40x = 174,006.60 × 76,638.40
  4. Step 4: Simplify right side
    116,004.40x = 13,335,587,413.44
  5. Step 5: Solve for x
    x = 13,335,587,413.44/116,004.40
  6. Step 6: Final answer
    x = 114,957.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.