Home / 98,911.44-148,235.94-85,701.96

Finding the Fourth Proportional to 98,911.44, 148,235.94 and 85,701.96

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Solution

The fourth proportional to 98,911.44, 148,235.94 and 85,701.96 is: 128,439.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,911.44 : 148,235.94 = 85,701.96 : x
  2. Step 2: Convert to fraction form
    98,911.44/148,235.94 = 85,701.96/x
  3. Step 3: Cross multiply
    98,911.44x = 148,235.94 × 85,701.96
  4. Step 4: Simplify right side
    98,911.44x = 12,704,110,600.44
  5. Step 5: Solve for x
    x = 12,704,110,600.44/98,911.44
  6. Step 6: Final answer
    x = 128,439.24

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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.