Home / 138,986.71-208,480.37-50,240.07

Finding the Fourth Proportional to 138,986.71, 208,480.37 and 50,240.07

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Solution

The fourth proportional to 138,986.71, 208,480.37 and 50,240.07 is: 75,360.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,986.71 : 208,480.37 = 50,240.07 : x
  2. Step 2: Convert to fraction form
    138,986.71/208,480.37 = 50,240.07/x
  3. Step 3: Cross multiply
    138,986.71x = 208,480.37 × 50,240.07
  4. Step 4: Simplify right side
    138,986.71x = 10,474,068,131.23
  5. Step 5: Solve for x
    x = 10,474,068,131.23/138,986.71
  6. Step 6: Final answer
    x = 75,360.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.