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Finding the Fourth Proportional to 112,076.90, 168,207.15 and 111,202.10

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Solution

The fourth proportional to 112,076.90, 168,207.15 and 111,202.10 is: 166,894.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,076.90 : 168,207.15 = 111,202.10 : x
  2. Step 2: Convert to fraction form
    112,076.90/168,207.15 = 111,202.10/x
  3. Step 3: Cross multiply
    112,076.90x = 168,207.15 × 111,202.10
  4. Step 4: Simplify right side
    112,076.90x = 18,704,988,315.02
  5. Step 5: Solve for x
    x = 18,704,988,315.02/112,076.90
  6. Step 6: Final answer
    x = 166,894.23

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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.