Home / 128,576.03-192,894.83-53,654.50

Finding the Fourth Proportional to 128,576.03, 192,894.83 and 53,654.50

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Solution

The fourth proportional to 128,576.03, 192,894.83 and 53,654.50 is: 80,494.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,576.03 : 192,894.83 = 53,654.50 : x
  2. Step 2: Convert to fraction form
    128,576.03/192,894.83 = 53,654.50/x
  3. Step 3: Cross multiply
    128,576.03x = 192,894.83 × 53,654.50
  4. Step 4: Simplify right side
    128,576.03x = 10,349,675,308.13
  5. Step 5: Solve for x
    x = 10,349,675,308.13/128,576.03
  6. Step 6: Final answer
    x = 80,494.59

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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.