Home / 137,743.44-190,071.34-77,320.73

Finding the Fourth Proportional to 137,743.44, 190,071.34 and 77,320.73

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Solution

The fourth proportional to 137,743.44, 190,071.34 and 77,320.73 is: 106,694.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,743.44 : 190,071.34 = 77,320.73 : x
  2. Step 2: Convert to fraction form
    137,743.44/190,071.34 = 77,320.73/x
  3. Step 3: Cross multiply
    137,743.44x = 190,071.34 × 77,320.73
  4. Step 4: Simplify right side
    137,743.44x = 14,696,454,760.88
  5. Step 5: Solve for x
    x = 14,696,454,760.88/137,743.44
  6. Step 6: Final answer
    x = 106,694.41

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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.