Home / 138,076.14-190,546.17-76,823.22

Finding the Fourth Proportional to 138,076.14, 190,546.17 and 76,823.22

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Solution

The fourth proportional to 138,076.14, 190,546.17 and 76,823.22 is: 106,016.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,076.14 : 190,546.17 = 76,823.22 : x
  2. Step 2: Convert to fraction form
    138,076.14/190,546.17 = 76,823.22/x
  3. Step 3: Cross multiply
    138,076.14x = 190,546.17 × 76,823.22
  4. Step 4: Simplify right side
    138,076.14x = 14,638,370,338.07
  5. Step 5: Solve for x
    x = 14,638,370,338.07/138,076.14
  6. Step 6: Final answer
    x = 106,016.65

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1.5x scale

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.