Home / 199,391.84-275,005.18-127,778.54

Finding the Fourth Proportional to 199,391.84, 275,005.18 and 127,778.54

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Solution

The fourth proportional to 199,391.84, 275,005.18 and 127,778.54 is: 176,234.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,391.84 : 275,005.18 = 127,778.54 : x
  2. Step 2: Convert to fraction form
    199,391.84/275,005.18 = 127,778.54/x
  3. Step 3: Cross multiply
    199,391.84x = 275,005.18 × 127,778.54
  4. Step 4: Simplify right side
    199,391.84x = 35,139,760,392.84
  5. Step 5: Solve for x
    x = 35,139,760,392.84/199,391.84
  6. Step 6: Final answer
    x = 176,234.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.