Home / 255,189.42-352,161.54-147,765.15

Finding the Fourth Proportional to 255,189.42, 352,161.54 and 147,765.15

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Solution

The fourth proportional to 255,189.42, 352,161.54 and 147,765.15 is: 203,915.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,189.42 : 352,161.54 = 147,765.15 : x
  2. Step 2: Convert to fraction form
    255,189.42/352,161.54 = 147,765.15/x
  3. Step 3: Cross multiply
    255,189.42x = 352,161.54 × 147,765.15
  4. Step 4: Simplify right side
    255,189.42x = 52,037,202,782.33
  5. Step 5: Solve for x
    x = 52,037,202,782.33/255,189.42
  6. Step 6: Final answer
    x = 203,915.99

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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.