Home / 128,176.22-192,264.35-83,840.27

Finding the Fourth Proportional to 128,176.22, 192,264.35 and 83,840.27

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Solution

The fourth proportional to 128,176.22, 192,264.35 and 83,840.27 is: 125,760.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,176.22 : 192,264.35 = 83,840.27 : x
  2. Step 2: Convert to fraction form
    128,176.22/192,264.35 = 83,840.27/x
  3. Step 3: Cross multiply
    128,176.22x = 192,264.35 × 83,840.27
  4. Step 4: Simplify right side
    128,176.22x = 16,119,493,634.85
  5. Step 5: Solve for x
    x = 16,119,493,634.85/128,176.22
  6. Step 6: Final answer
    x = 125,760.40

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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.