Home / 127,021.33-190,394.90-55,880.65

Finding the Fourth Proportional to 127,021.33, 190,394.90 and 55,880.65

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Solution

The fourth proportional to 127,021.33, 190,394.90 and 55,880.65 is: 83,760.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,021.33 : 190,394.90 = 55,880.65 : x
  2. Step 2: Convert to fraction form
    127,021.33/190,394.90 = 55,880.65/x
  3. Step 3: Cross multiply
    127,021.33x = 190,394.90 × 55,880.65
  4. Step 4: Simplify right side
    127,021.33x = 10,639,390,768.69
  5. Step 5: Solve for x
    x = 10,639,390,768.69/127,021.33
  6. Step 6: Final answer
    x = 83,760.66

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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.