Home / 128,444.38-192,721.93-53,579.27

Finding the Fourth Proportional to 128,444.38, 192,721.93 and 53,579.27

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Solution

The fourth proportional to 128,444.38, 192,721.93 and 53,579.27 is: 80,391.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,444.38 : 192,721.93 = 53,579.27 : x
  2. Step 2: Convert to fraction form
    128,444.38/192,721.93 = 53,579.27/x
  3. Step 3: Cross multiply
    128,444.38x = 192,721.93 × 53,579.27
  4. Step 4: Simplify right side
    128,444.38x = 10,325,899,090.89
  5. Step 5: Solve for x
    x = 10,325,899,090.89/128,444.38
  6. Step 6: Final answer
    x = 80,391.99

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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.