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Finding the Fourth Proportional to 117,560.40, 176,340.60 and 100,647.60

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Solution

The fourth proportional to 117,560.40, 176,340.60 and 100,647.60 is: 150,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,560.40 : 176,340.60 = 100,647.60 : x
  2. Step 2: Convert to fraction form
    117,560.40/176,340.60 = 100,647.60/x
  3. Step 3: Cross multiply
    117,560.40x = 176,340.60 × 100,647.60
  4. Step 4: Simplify right side
    117,560.40x = 17,748,258,172.56
  5. Step 5: Solve for x
    x = 17,748,258,172.56/117,560.40
  6. Step 6: Final answer
    x = 150,971.40

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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.