Home / 126,355.94-174,371.09-72,651.45

Finding the Fourth Proportional to 126,355.94, 174,371.09 and 72,651.45

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Solution

The fourth proportional to 126,355.94, 174,371.09 and 72,651.45 is: 100,258.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,355.94 : 174,371.09 = 72,651.45 : x
  2. Step 2: Convert to fraction form
    126,355.94/174,371.09 = 72,651.45/x
  3. Step 3: Cross multiply
    126,355.94x = 174,371.09 × 72,651.45
  4. Step 4: Simplify right side
    126,355.94x = 12,668,312,163.32
  5. Step 5: Solve for x
    x = 12,668,312,163.32/126,355.94
  6. Step 6: Final answer
    x = 100,258.94

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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.