Home / 112,167.78-154,790.82-61,866.78

Finding the Fourth Proportional to 112,167.78, 154,790.82 and 61,866.78

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Solution

The fourth proportional to 112,167.78, 154,790.82 and 61,866.78 is: 85,375.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,167.78 : 154,790.82 = 61,866.78 : x
  2. Step 2: Convert to fraction form
    112,167.78/154,790.82 = 61,866.78/x
  3. Step 3: Cross multiply
    112,167.78x = 154,790.82 × 61,866.78
  4. Step 4: Simplify right side
    112,167.78x = 9,576,409,606.96
  5. Step 5: Solve for x
    x = 9,576,409,606.96/112,167.78
  6. Step 6: Final answer
    x = 85,375.76

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1.5x scale

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.