Home / 118,974.39-164,186.55-65,258.43

Finding the Fourth Proportional to 118,974.39, 164,186.55 and 65,258.43

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Solution

The fourth proportional to 118,974.39, 164,186.55 and 65,258.43 is: 90,057.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,974.39 : 164,186.55 = 65,258.43 : x
  2. Step 2: Convert to fraction form
    118,974.39/164,186.55 = 65,258.43/x
  3. Step 3: Cross multiply
    118,974.39x = 164,186.55 × 65,258.43
  4. Step 4: Simplify right side
    118,974.39x = 10,714,556,480.12
  5. Step 5: Solve for x
    x = 10,714,556,480.12/118,974.39
  6. Step 6: Final answer
    x = 90,057.67

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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.