Home / 110,505.16-152,515.41-65,194.22

Finding the Fourth Proportional to 110,505.16, 152,515.41 and 65,194.22

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Solution

The fourth proportional to 110,505.16, 152,515.41 and 65,194.22 is: 89,978.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,505.16 : 152,515.41 = 65,194.22 : x
  2. Step 2: Convert to fraction form
    110,505.16/152,515.41 = 65,194.22/x
  3. Step 3: Cross multiply
    110,505.16x = 152,515.41 × 65,194.22
  4. Step 4: Simplify right side
    110,505.16x = 9,943,122,471.84
  5. Step 5: Solve for x
    x = 9,943,122,471.84/110,505.16
  6. Step 6: Final answer
    x = 89,978.81

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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.