Home / 201,742.64-278,593.80-126,422.36

Finding the Fourth Proportional to 201,742.64, 278,593.80 and 126,422.36

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Solution

The fourth proportional to 201,742.64, 278,593.80 and 126,422.36 is: 174,581.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,742.64 : 278,593.80 = 126,422.36 : x
  2. Step 2: Convert to fraction form
    201,742.64/278,593.80 = 126,422.36/x
  3. Step 3: Cross multiply
    201,742.64x = 278,593.80 × 126,422.36
  4. Step 4: Simplify right side
    201,742.64x = 35,220,485,677.37
  5. Step 5: Solve for x
    x = 35,220,485,677.37/201,742.64
  6. Step 6: Final answer
    x = 174,581.27

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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.