Home / 219,728.56-303,189.54-127,868.43

Finding the Fourth Proportional to 219,728.56, 303,189.54 and 127,868.43

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Solution

The fourth proportional to 219,728.56, 303,189.54 and 127,868.43 is: 176,437.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,728.56 : 303,189.54 = 127,868.43 : x
  2. Step 2: Convert to fraction form
    219,728.56/303,189.54 = 127,868.43/x
  3. Step 3: Cross multiply
    219,728.56x = 303,189.54 × 127,868.43
  4. Step 4: Simplify right side
    219,728.56x = 38,768,370,472.22
  5. Step 5: Solve for x
    x = 38,768,370,472.22/219,728.56
  6. Step 6: Final answer
    x = 176,437.56

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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.