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Finding the Fourth Proportional to 113,220.70, 156,204.72 and 67,913.34

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Solution

The fourth proportional to 113,220.70, 156,204.72 and 67,913.34 is: 93,696.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,220.70 : 156,204.72 = 67,913.34 : x
  2. Step 2: Convert to fraction form
    113,220.70/156,204.72 = 67,913.34/x
  3. Step 3: Cross multiply
    113,220.70x = 156,204.72 × 67,913.34
  4. Step 4: Simplify right side
    113,220.70x = 10,608,384,258.96
  5. Step 5: Solve for x
    x = 10,608,384,258.96/113,220.70
  6. Step 6: Final answer
    x = 93,696.51

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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.