Home / 126,837.78-190,278.54-56,722.56

Finding the Fourth Proportional to 126,837.78, 190,278.54 and 56,722.56

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Solution

The fourth proportional to 126,837.78, 190,278.54 and 56,722.56 is: 85,093.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,837.78 : 190,278.54 = 56,722.56 : x
  2. Step 2: Convert to fraction form
    126,837.78/190,278.54 = 56,722.56/x
  3. Step 3: Cross multiply
    126,837.78x = 190,278.54 × 56,722.56
  4. Step 4: Simplify right side
    126,837.78x = 10,793,085,901.86
  5. Step 5: Solve for x
    x = 10,793,085,901.86/126,837.78
  6. Step 6: Final answer
    x = 85,093.62

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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.