Home / 117,060.21-161,612.69-76,844.32

Finding the Fourth Proportional to 117,060.21, 161,612.69 and 76,844.32

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Solution

The fourth proportional to 117,060.21, 161,612.69 and 76,844.32 is: 106,090.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,060.21 : 161,612.69 = 76,844.32 : x
  2. Step 2: Convert to fraction form
    117,060.21/161,612.69 = 76,844.32/x
  3. Step 3: Cross multiply
    117,060.21x = 161,612.69 × 76,844.32
  4. Step 4: Simplify right side
    117,060.21x = 12,419,016,478.17
  5. Step 5: Solve for x
    x = 12,419,016,478.17/117,060.21
  6. Step 6: Final answer
    x = 106,090.84

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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.