Home / 138,089,091.08-190,625,091.05-91,074,055.85

Finding the Fourth Proportional to 138,089,091.08, 190,625,091.05 and 91,074,055.85

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Solution

The fourth proportional to 138,089,091.08, 190,625,091.05 and 91,074,055.85 is: 125,723,183.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,089,091.08 : 190,625,091.05 = 91,074,055.85 : x
  2. Step 2: Convert to fraction form
    138,089,091.08/190,625,091.05 = 91,074,055.85/x
  3. Step 3: Cross multiply
    138,089,091.08x = 190,625,091.05 × 91,074,055.85
  4. Step 4: Simplify right side
    138,089,091.08x = 17,361,000,188,699,036
  5. Step 5: Solve for x
    x = 17,361,000,188,699,036/138,089,091.08
  6. Step 6: Final answer
    x = 125,723,183.87

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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.