Home / 112,231.40-154,878.36-61,245.14

Finding the Fourth Proportional to 112,231.40, 154,878.36 and 61,245.14

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Solution

The fourth proportional to 112,231.40, 154,878.36 and 61,245.14 is: 84,517.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,231.40 : 154,878.36 = 61,245.14 : x
  2. Step 2: Convert to fraction form
    112,231.40/154,878.36 = 61,245.14/x
  3. Step 3: Cross multiply
    112,231.40x = 154,878.36 × 61,245.14
  4. Step 4: Simplify right side
    112,231.40x = 9,485,546,841.17
  5. Step 5: Solve for x
    x = 9,485,546,841.17/112,231.40
  6. Step 6: Final answer
    x = 84,517.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.