Home / 101,851.20-140,550.48-56,531.07

Finding the Fourth Proportional to 101,851.20, 140,550.48 and 56,531.07

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Solution

The fourth proportional to 101,851.20, 140,550.48 and 56,531.07 is: 78,010.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,851.20 : 140,550.48 = 56,531.07 : x
  2. Step 2: Convert to fraction form
    101,851.20/140,550.48 = 56,531.07/x
  3. Step 3: Cross multiply
    101,851.20x = 140,550.48 × 56,531.07
  4. Step 4: Simplify right side
    101,851.20x = 7,945,469,023.41
  5. Step 5: Solve for x
    x = 7,945,469,023.41/101,851.20
  6. Step 6: Final answer
    x = 78,010.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.