Home / 126,605.25-174,759.18-72,911.64

Finding the Fourth Proportional to 126,605.25, 174,759.18 and 72,911.64

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Solution

The fourth proportional to 126,605.25, 174,759.18 and 72,911.64 is: 100,643.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,605.25 : 174,759.18 = 72,911.64 : x
  2. Step 2: Convert to fraction form
    126,605.25/174,759.18 = 72,911.64/x
  3. Step 3: Cross multiply
    126,605.25x = 174,759.18 × 72,911.64
  4. Step 4: Simplify right side
    126,605.25x = 12,741,978,418.86
  5. Step 5: Solve for x
    x = 12,741,978,418.86/126,605.25
  6. Step 6: Final answer
    x = 100,643.37

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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.