Home / 112,383.60-168,575.40-76,954.20

Finding the Fourth Proportional to 112,383.60, 168,575.40 and 76,954.20

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Solution

The fourth proportional to 112,383.60, 168,575.40 and 76,954.20 is: 115,431.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,383.60 : 168,575.40 = 76,954.20 : x
  2. Step 2: Convert to fraction form
    112,383.60/168,575.40 = 76,954.20/x
  3. Step 3: Cross multiply
    112,383.60x = 168,575.40 × 76,954.20
  4. Step 4: Simplify right side
    112,383.60x = 12,972,585,046.68
  5. Step 5: Solve for x
    x = 12,972,585,046.68/112,383.60
  6. Step 6: Final answer
    x = 115,431.30

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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.