Home / 199,390.47-275,003.26-127,777.16

Finding the Fourth Proportional to 199,390.47, 275,003.26 and 127,777.16

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Solution

The fourth proportional to 199,390.47, 275,003.26 and 127,777.16 is: 176,232.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,390.47 : 275,003.26 = 127,777.16 : x
  2. Step 2: Convert to fraction form
    199,390.47/275,003.26 = 127,777.16/x
  3. Step 3: Cross multiply
    199,390.47x = 275,003.26 × 127,777.16
  4. Step 4: Simplify right side
    199,390.47x = 35,139,133,859.08
  5. Step 5: Solve for x
    x = 35,139,133,859.08/199,390.47
  6. Step 6: Final answer
    x = 176,232.77

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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.