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Finding the Fourth Proportional to 111,314.40, 153,622.62 and 68,886.60

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Solution

The fourth proportional to 111,314.40, 153,622.62 and 68,886.60 is: 95,068.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,314.40 : 153,622.62 = 68,886.60 : x
  2. Step 2: Convert to fraction form
    111,314.40/153,622.62 = 68,886.60/x
  3. Step 3: Cross multiply
    111,314.40x = 153,622.62 × 68,886.60
  4. Step 4: Simplify right side
    111,314.40x = 10,582,539,974.89
  5. Step 5: Solve for x
    x = 10,582,539,974.89/111,314.40
  6. Step 6: Final answer
    x = 95,068.92

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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.