Home / 111,174.20-153,316.74-102,917.60

Finding the Fourth Proportional to 111,174.20, 153,316.74 and 102,917.60

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Solution

The fourth proportional to 111,174.20, 153,316.74 and 102,917.60 is: 141,930.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,174.20 : 153,316.74 = 102,917.60 : x
  2. Step 2: Convert to fraction form
    111,174.20/153,316.74 = 102,917.60/x
  3. Step 3: Cross multiply
    111,174.20x = 153,316.74 × 102,917.60
  4. Step 4: Simplify right side
    111,174.20x = 15,778,990,920.62
  5. Step 5: Solve for x
    x = 15,778,990,920.62/111,174.20
  6. Step 6: Final answer
    x = 141,930.33

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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.