Home / 107,765,656.43-161,538,054.95-81,802,996.73

Finding the Fourth Proportional to 107,765,656.43, 161,538,054.95 and 81,802,996.73

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Solution

The fourth proportional to 107,765,656.43, 161,538,054.95 and 81,802,996.73 is: 122,620,669.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,765,656.43 : 161,538,054.95 = 81,802,996.73 : x
  2. Step 2: Convert to fraction form
    107,765,656.43/161,538,054.95 = 81,802,996.73/x
  3. Step 3: Cross multiply
    107,765,656.43x = 161,538,054.95 × 81,802,996.73
  4. Step 4: Simplify right side
    107,765,656.43x = 13,214,296,979,628,704
  5. Step 5: Solve for x
    x = 13,214,296,979,628,704/107,765,656.43
  6. Step 6: Final answer
    x = 122,620,669.87

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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.