Home / 112,183.11-154,801.94-61,878.87

Finding the Fourth Proportional to 112,183.11, 154,801.94 and 61,878.87

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Solution

The fourth proportional to 112,183.11, 154,801.94 and 61,878.87 is: 85,386.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,183.11 : 154,801.94 = 61,878.87 : x
  2. Step 2: Convert to fraction form
    112,183.11/154,801.94 = 61,878.87/x
  3. Step 3: Cross multiply
    112,183.11x = 154,801.94 × 61,878.87
  4. Step 4: Simplify right side
    112,183.11x = 9,578,968,811.61
  5. Step 5: Solve for x
    x = 9,578,968,811.61/112,183.11
  6. Step 6: Final answer
    x = 85,386.91

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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.