Home / 137,863.73-190,250.75-79,719.08

Finding the Fourth Proportional to 137,863.73, 190,250.75 and 79,719.08

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Solution

The fourth proportional to 137,863.73, 190,250.75 and 79,719.08 is: 110,011.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,863.73 : 190,250.75 = 79,719.08 : x
  2. Step 2: Convert to fraction form
    137,863.73/190,250.75 = 79,719.08/x
  3. Step 3: Cross multiply
    137,863.73x = 190,250.75 × 79,719.08
  4. Step 4: Simplify right side
    137,863.73x = 15,166,614,007.35
  5. Step 5: Solve for x
    x = 15,166,614,007.35/137,863.73
  6. Step 6: Final answer
    x = 110,011.63

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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.