Home / 128,755.22-193,095.93-38,806.64

Finding the Fourth Proportional to 128,755.22, 193,095.93 and 38,806.64

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Solution

The fourth proportional to 128,755.22, 193,095.93 and 38,806.64 is: 58,198.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,755.22 : 193,095.93 = 38,806.64 : x
  2. Step 2: Convert to fraction form
    128,755.22/193,095.93 = 38,806.64/x
  3. Step 3: Cross multiply
    128,755.22x = 193,095.93 × 38,806.64
  4. Step 4: Simplify right side
    128,755.22x = 7,493,404,240.98
  5. Step 5: Solve for x
    x = 7,493,404,240.98/128,755.22
  6. Step 6: Final answer
    x = 58,198.84

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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.