Home / 199,390.84-275,003.80-127,777.54

Finding the Fourth Proportional to 199,390.84, 275,003.80 and 127,777.54

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Solution

The fourth proportional to 199,390.84, 275,003.80 and 127,777.54 is: 176,233.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,390.84 : 275,003.80 = 127,777.54 : x
  2. Step 2: Convert to fraction form
    199,390.84/275,003.80 = 127,777.54/x
  3. Step 3: Cross multiply
    199,390.84x = 275,003.80 × 127,777.54
  4. Step 4: Simplify right side
    199,390.84x = 35,139,309,054.65
  5. Step 5: Solve for x
    x = 35,139,309,054.65/199,390.84
  6. Step 6: Final answer
    x = 176,233.32

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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.