Home / 126,391.95-174,499.77-80,477.50

Finding the Fourth Proportional to 126,391.95, 174,499.77 and 80,477.50

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Solution

The fourth proportional to 126,391.95, 174,499.77 and 80,477.50 is: 111,109.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,391.95 : 174,499.77 = 80,477.50 : x
  2. Step 2: Convert to fraction form
    126,391.95/174,499.77 = 80,477.50/x
  3. Step 3: Cross multiply
    126,391.95x = 174,499.77 × 80,477.50
  4. Step 4: Simplify right side
    126,391.95x = 14,043,305,240.18
  5. Step 5: Solve for x
    x = 14,043,305,240.18/126,391.95
  6. Step 6: Final answer
    x = 111,109.18

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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.