Home / 126,378.09-174,401.64-69,789.33

Finding the Fourth Proportional to 126,378.09, 174,401.64 and 69,789.33

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Solution

The fourth proportional to 126,378.09, 174,401.64 and 69,789.33 is: 96,309.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,378.09 : 174,401.64 = 69,789.33 : x
  2. Step 2: Convert to fraction form
    126,378.09/174,401.64 = 69,789.33/x
  3. Step 3: Cross multiply
    126,378.09x = 174,401.64 × 69,789.33
  4. Step 4: Simplify right side
    126,378.09x = 12,171,373,606.50
  5. Step 5: Solve for x
    x = 12,171,373,606.50/126,378.09
  6. Step 6: Final answer
    x = 96,309.21

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1.5x scale

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.