Home / 137,906.66-190,330.38-77,481.99

Finding the Fourth Proportional to 137,906.66, 190,330.38 and 77,481.99

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Solution

The fourth proportional to 137,906.66, 190,330.38 and 77,481.99 is: 106,935.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,906.66 : 190,330.38 = 77,481.99 : x
  2. Step 2: Convert to fraction form
    137,906.66/190,330.38 = 77,481.99/x
  3. Step 3: Cross multiply
    137,906.66x = 190,330.38 × 77,481.99
  4. Step 4: Simplify right side
    137,906.66x = 14,747,176,599.86
  5. Step 5: Solve for x
    x = 14,747,176,599.86/137,906.66
  6. Step 6: Final answer
    x = 106,935.93

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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.