Home / 111,900.20-154,429.27-61,599.20

Finding the Fourth Proportional to 111,900.20, 154,429.27 and 61,599.20

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Solution

The fourth proportional to 111,900.20, 154,429.27 and 61,599.20 is: 85,010.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,900.20 : 154,429.27 = 61,599.20 : x
  2. Step 2: Convert to fraction form
    111,900.20/154,429.27 = 61,599.20/x
  3. Step 3: Cross multiply
    111,900.20x = 154,429.27 × 61,599.20
  4. Step 4: Simplify right side
    111,900.20x = 9,512,718,562.44
  5. Step 5: Solve for x
    x = 9,512,718,562.44/111,900.20
  6. Step 6: Final answer
    x = 85,010.74

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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.