Home / 126,911.18-190,340.04-38,138.42

Finding the Fourth Proportional to 126,911.18, 190,340.04 and 38,138.42

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Solution

The fourth proportional to 126,911.18, 190,340.04 and 38,138.42 is: 57,199.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,911.18 : 190,340.04 = 38,138.42 : x
  2. Step 2: Convert to fraction form
    126,911.18/190,340.04 = 38,138.42/x
  3. Step 3: Cross multiply
    126,911.18x = 190,340.04 × 38,138.42
  4. Step 4: Simplify right side
    126,911.18x = 7,259,268,388.34
  5. Step 5: Solve for x
    x = 7,259,268,388.34/126,911.18
  6. Step 6: Final answer
    x = 57,199.60

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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.