Home / 127,261.90-190,914.45-38,514.70

Finding the Fourth Proportional to 127,261.90, 190,914.45 and 38,514.70

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Solution

The fourth proportional to 127,261.90, 190,914.45 and 38,514.70 is: 57,778.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,261.90 : 190,914.45 = 38,514.70 : x
  2. Step 2: Convert to fraction form
    127,261.90/190,914.45 = 38,514.70/x
  3. Step 3: Cross multiply
    127,261.90x = 190,914.45 × 38,514.70
  4. Step 4: Simplify right side
    127,261.90x = 7,353,012,767.42
  5. Step 5: Solve for x
    x = 7,353,012,767.42/127,261.90
  6. Step 6: Final answer
    x = 57,778.59

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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.