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Finding the Fourth Proportional to 104,220.40, 156,330.60 and 93,139.60

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Solution

The fourth proportional to 104,220.40, 156,330.60 and 93,139.60 is: 139,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,220.40 : 156,330.60 = 93,139.60 : x
  2. Step 2: Convert to fraction form
    104,220.40/156,330.60 = 93,139.60/x
  3. Step 3: Cross multiply
    104,220.40x = 156,330.60 × 93,139.60
  4. Step 4: Simplify right side
    104,220.40x = 14,560,569,551.76
  5. Step 5: Solve for x
    x = 14,560,569,551.76/104,220.40
  6. Step 6: Final answer
    x = 139,709.40

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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.