Home / 149,205.03-205,906.77-91,823.01

Finding the Fourth Proportional to 149,205.03, 205,906.77 and 91,823.01

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Solution

The fourth proportional to 149,205.03, 205,906.77 and 91,823.01 is: 126,718.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,205.03 : 205,906.77 = 91,823.01 : x
  2. Step 2: Convert to fraction form
    149,205.03/205,906.77 = 91,823.01/x
  3. Step 3: Cross multiply
    149,205.03x = 205,906.77 × 91,823.01
  4. Step 4: Simplify right side
    149,205.03x = 18,906,979,400.78
  5. Step 5: Solve for x
    x = 18,906,979,400.78/149,205.03
  6. Step 6: Final answer
    x = 126,718.11

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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.