Home / 127,209.42-190,783.28-38,470.07

Finding the Fourth Proportional to 127,209.42, 190,783.28 and 38,470.07

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Solution

The fourth proportional to 127,209.42, 190,783.28 and 38,470.07 is: 57,695.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,209.42 : 190,783.28 = 38,470.07 : x
  2. Step 2: Convert to fraction form
    127,209.42/190,783.28 = 38,470.07/x
  3. Step 3: Cross multiply
    127,209.42x = 190,783.28 × 38,470.07
  4. Step 4: Simplify right side
    127,209.42x = 7,339,446,709.56
  5. Step 5: Solve for x
    x = 7,339,446,709.56/127,209.42
  6. Step 6: Final answer
    x = 57,695.78

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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.