Home / 142,366.36-196,418.64-91,407.64

Finding the Fourth Proportional to 142,366.36, 196,418.64 and 91,407.64

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Solution

The fourth proportional to 142,366.36, 196,418.64 and 91,407.64 is: 126,112.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,366.36 : 196,418.64 = 91,407.64 : x
  2. Step 2: Convert to fraction form
    142,366.36/196,418.64 = 91,407.64/x
  3. Step 3: Cross multiply
    142,366.36x = 196,418.64 × 91,407.64
  4. Step 4: Simplify right side
    142,366.36x = 17,954,164,334.41
  5. Step 5: Solve for x
    x = 17,954,164,334.41/142,366.36
  6. Step 6: Final answer
    x = 126,112.41

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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.