Home / 120,258.60-180,825.30-117,634.20

Finding the Fourth Proportional to 120,258.60, 180,825.30 and 117,634.20

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Solution

The fourth proportional to 120,258.60, 180,825.30 and 117,634.20 is: 176,879.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,258.60 : 180,825.30 = 117,634.20 : x
  2. Step 2: Convert to fraction form
    120,258.60/180,825.30 = 117,634.20/x
  3. Step 3: Cross multiply
    120,258.60x = 180,825.30 × 117,634.20
  4. Step 4: Simplify right side
    120,258.60x = 21,271,239,505.26
  5. Step 5: Solve for x
    x = 21,271,239,505.26/120,258.60
  6. Step 6: Final answer
    x = 176,879.15

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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.