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Finding the Fourth Proportional to 111,114.40, 166,671.60 and 103,678.60

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Solution

The fourth proportional to 111,114.40, 166,671.60 and 103,678.60 is: 155,517.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,114.40 : 166,671.60 = 103,678.60 : x
  2. Step 2: Convert to fraction form
    111,114.40/166,671.60 = 103,678.60/x
  3. Step 3: Cross multiply
    111,114.40x = 166,671.60 × 103,678.60
  4. Step 4: Simplify right side
    111,114.40x = 17,280,278,147.76
  5. Step 5: Solve for x
    x = 17,280,278,147.76/111,114.40
  6. Step 6: Final answer
    x = 155,517.90

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1.5x scale

Why These Related Problems?

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