Home / 163,221.03-225,249.12-91,606.50

Finding the Fourth Proportional to 163,221.03, 225,249.12 and 91,606.50

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Solution

The fourth proportional to 163,221.03, 225,249.12 and 91,606.50 is: 126,419.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,221.03 : 225,249.12 = 91,606.50 : x
  2. Step 2: Convert to fraction form
    163,221.03/225,249.12 = 91,606.50/x
  3. Step 3: Cross multiply
    163,221.03x = 225,249.12 × 91,606.50
  4. Step 4: Simplify right side
    163,221.03x = 20,634,283,511.28
  5. Step 5: Solve for x
    x = 20,634,283,511.28/163,221.03
  6. Step 6: Final answer
    x = 126,419.27

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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.