Home / 106,078.28-159,108.96-61,676.72

Finding the Fourth Proportional to 106,078.28, 159,108.96 and 61,676.72

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Solution

The fourth proportional to 106,078.28, 159,108.96 and 61,676.72 is: 92,510.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,078.28 : 159,108.96 = 61,676.72 : x
  2. Step 2: Convert to fraction form
    106,078.28/159,108.96 = 61,676.72/x
  3. Step 3: Cross multiply
    106,078.28x = 159,108.96 × 61,676.72
  4. Step 4: Simplify right side
    106,078.28x = 9,813,318,775.41
  5. Step 5: Solve for x
    x = 9,813,318,775.41/106,078.28
  6. Step 6: Final answer
    x = 92,510.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.