Home / 132,115.72-198,205.98-61,913.20

Finding the Fourth Proportional to 132,115.72, 198,205.98 and 61,913.20

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Solution

The fourth proportional to 132,115.72, 198,205.98 and 61,913.20 is: 92,884.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,115.72 : 198,205.98 = 61,913.20 : x
  2. Step 2: Convert to fraction form
    132,115.72/198,205.98 = 61,913.20/x
  3. Step 3: Cross multiply
    132,115.72x = 198,205.98 × 61,913.20
  4. Step 4: Simplify right side
    132,115.72x = 12,271,566,480.94
  5. Step 5: Solve for x
    x = 12,271,566,480.94/132,115.72
  6. Step 6: Final answer
    x = 92,884.98

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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.