Home / 138,089,097.87-190,625,100.40-91,074,062.60

Finding the Fourth Proportional to 138,089,097.87, 190,625,100.40 and 91,074,062.60

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Solution

The fourth proportional to 138,089,097.87, 190,625,100.40 and 91,074,062.60 is: 125,723,193.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,089,097.87 : 190,625,100.40 = 91,074,062.60 : x
  2. Step 2: Convert to fraction form
    138,089,097.87/190,625,100.40 = 91,074,062.60/x
  3. Step 3: Cross multiply
    138,089,097.87x = 190,625,100.40 × 91,074,062.60
  4. Step 4: Simplify right side
    138,089,097.87x = 17,361,002,326,960,884
  5. Step 5: Solve for x
    x = 17,361,002,326,960,884/138,089,097.87
  6. Step 6: Final answer
    x = 125,723,193.18

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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.