Home / 117,309.06-161,844.08-77,044.64

Finding the Fourth Proportional to 117,309.06, 161,844.08 and 77,044.64

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Solution

The fourth proportional to 117,309.06, 161,844.08 and 77,044.64 is: 106,293.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,309.06 : 161,844.08 = 77,044.64 : x
  2. Step 2: Convert to fraction form
    117,309.06/161,844.08 = 77,044.64/x
  3. Step 3: Cross multiply
    117,309.06x = 161,844.08 × 77,044.64
  4. Step 4: Simplify right side
    117,309.06x = 12,469,217,685.29
  5. Step 5: Solve for x
    x = 12,469,217,685.29/117,309.06
  6. Step 6: Final answer
    x = 106,293.73

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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.