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Finding the Fourth Proportional to 112,180.90, 154,812.56 and 61,194.49

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Solution

The fourth proportional to 112,180.90, 154,812.56 and 61,194.49 is: 84,449.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,180.90 : 154,812.56 = 61,194.49 : x
  2. Step 2: Convert to fraction form
    112,180.90/154,812.56 = 61,194.49/x
  3. Step 3: Cross multiply
    112,180.90x = 154,812.56 × 61,194.49
  4. Step 4: Simplify right side
    112,180.90x = 9,473,675,654.79
  5. Step 5: Solve for x
    x = 9,473,675,654.79/112,180.90
  6. Step 6: Final answer
    x = 84,449.99

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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.