Home / 138,054.97-190,470.06-112,517.46

Finding the Fourth Proportional to 138,054.97, 190,470.06 and 112,517.46

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Solution

The fourth proportional to 138,054.97, 190,470.06 and 112,517.46 is: 155,236.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,054.97 : 190,470.06 = 112,517.46 : x
  2. Step 2: Convert to fraction form
    138,054.97/190,470.06 = 112,517.46/x
  3. Step 3: Cross multiply
    138,054.97x = 190,470.06 × 112,517.46
  4. Step 4: Simplify right side
    138,054.97x = 21,431,207,357.25
  5. Step 5: Solve for x
    x = 21,431,207,357.25/138,054.97
  6. Step 6: Final answer
    x = 155,236.77

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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.