Home / 128,688.39-193,029.84-35,194.14

Finding the Fourth Proportional to 128,688.39, 193,029.84 and 35,194.14

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Solution

The fourth proportional to 128,688.39, 193,029.84 and 35,194.14 is: 52,790.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,688.39 : 193,029.84 = 35,194.14 : x
  2. Step 2: Convert to fraction form
    128,688.39/193,029.84 = 35,194.14/x
  3. Step 3: Cross multiply
    128,688.39x = 193,029.84 × 35,194.14
  4. Step 4: Simplify right side
    128,688.39x = 6,793,519,213.14
  5. Step 5: Solve for x
    x = 6,793,519,213.14/128,688.39
  6. Step 6: Final answer
    x = 52,790.46

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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.