Home / 117,190.89-161,617.13-76,889.34

Finding the Fourth Proportional to 117,190.89, 161,617.13 and 76,889.34

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Solution

The fourth proportional to 117,190.89, 161,617.13 and 76,889.34 is: 106,037.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,190.89 : 161,617.13 = 76,889.34 : x
  2. Step 2: Convert to fraction form
    117,190.89/161,617.13 = 76,889.34/x
  3. Step 3: Cross multiply
    117,190.89x = 161,617.13 × 76,889.34
  4. Step 4: Simplify right side
    117,190.89x = 12,426,634,362.28
  5. Step 5: Solve for x
    x = 12,426,634,362.28/117,190.89
  6. Step 6: Final answer
    x = 106,037.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.