Home / 138,832.94-208,222.92-67,684.16

Finding the Fourth Proportional to 138,832.94, 208,222.92 and 67,684.16

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Solution

The fourth proportional to 138,832.94, 208,222.92 and 67,684.16 is: 101,513.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,832.94 : 208,222.92 = 67,684.16 : x
  2. Step 2: Convert to fraction form
    138,832.94/208,222.92 = 67,684.16/x
  3. Step 3: Cross multiply
    138,832.94x = 208,222.92 × 67,684.16
  4. Step 4: Simplify right side
    138,832.94x = 14,093,392,391.83
  5. Step 5: Solve for x
    x = 14,093,392,391.83/138,832.94
  6. Step 6: Final answer
    x = 101,513.32

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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.