Home / 195,728.16-270,088.36-108,515.59

Finding the Fourth Proportional to 195,728.16, 270,088.36 and 108,515.59

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Solution

The fourth proportional to 195,728.16, 270,088.36 and 108,515.59 is: 149,742.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,728.16 : 270,088.36 = 108,515.59 : x
  2. Step 2: Convert to fraction form
    195,728.16/270,088.36 = 108,515.59/x
  3. Step 3: Cross multiply
    195,728.16x = 270,088.36 × 108,515.59
  4. Step 4: Simplify right side
    195,728.16x = 29,308,797,737.53
  5. Step 5: Solve for x
    x = 29,308,797,737.53/195,728.16
  6. Step 6: Final answer
    x = 149,742.37

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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.