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Finding the Fourth Proportional to 111,867.84, 154,374.08 and 61,566.72

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Solution

The fourth proportional to 111,867.84, 154,374.08 and 61,566.72 is: 84,960.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,867.84 : 154,374.08 = 61,566.72 : x
  2. Step 2: Convert to fraction form
    111,867.84/154,374.08 = 61,566.72/x
  3. Step 3: Cross multiply
    111,867.84x = 154,374.08 × 61,566.72
  4. Step 4: Simplify right side
    111,867.84x = 9,504,305,758.62
  5. Step 5: Solve for x
    x = 9,504,305,758.62/111,867.84
  6. Step 6: Final answer
    x = 84,960.13

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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.