Home / 128,633.45-192,915.33-53,737.93

Finding the Fourth Proportional to 128,633.45, 192,915.33 and 53,737.93

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Solution

The fourth proportional to 128,633.45, 192,915.33 and 53,737.93 is: 80,592.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,633.45 : 192,915.33 = 53,737.93 : x
  2. Step 2: Convert to fraction form
    128,633.45/192,915.33 = 53,737.93/x
  3. Step 3: Cross multiply
    128,633.45x = 192,915.33 × 53,737.93
  4. Step 4: Simplify right side
    128,633.45x = 10,366,870,576.88
  5. Step 5: Solve for x
    x = 10,366,870,576.88/128,633.45
  6. Step 6: Final answer
    x = 80,592.34

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1.5x scale

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.