Home / 120,586.20-180,879.30-97,258.20

Finding the Fourth Proportional to 120,586.20, 180,879.30 and 97,258.20

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Solution

The fourth proportional to 120,586.20, 180,879.30 and 97,258.20 is: 145,887.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,586.20 : 180,879.30 = 97,258.20 : x
  2. Step 2: Convert to fraction form
    120,586.20/180,879.30 = 97,258.20/x
  3. Step 3: Cross multiply
    120,586.20x = 180,879.30 × 97,258.20
  4. Step 4: Simplify right side
    120,586.20x = 17,591,995,135.26
  5. Step 5: Solve for x
    x = 17,591,995,135.26/120,586.20
  6. Step 6: Final answer
    x = 145,887.30

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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.