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Finding the Fourth Proportional to 112,207.68, 154,839.60 and 61,907.04

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Solution

The fourth proportional to 112,207.68, 154,839.60 and 61,907.04 is: 85,427.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,207.68 : 154,839.60 = 61,907.04 : x
  2. Step 2: Convert to fraction form
    112,207.68/154,839.60 = 61,907.04/x
  3. Step 3: Cross multiply
    112,207.68x = 154,839.60 × 61,907.04
  4. Step 4: Simplify right side
    112,207.68x = 9,585,661,310.78
  5. Step 5: Solve for x
    x = 9,585,661,310.78/112,207.68
  6. Step 6: Final answer
    x = 85,427.85

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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.