Home / 128,752.14-193,091.29-38,803.56

Finding the Fourth Proportional to 128,752.14, 193,091.29 and 38,803.56

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Solution

The fourth proportional to 128,752.14, 193,091.29 and 38,803.56 is: 58,194.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,752.14 : 193,091.29 = 38,803.56 : x
  2. Step 2: Convert to fraction form
    128,752.14/193,091.29 = 38,803.56/x
  3. Step 3: Cross multiply
    128,752.14x = 193,091.29 × 38,803.56
  4. Step 4: Simplify right side
    128,752.14x = 7,492,629,456.99
  5. Step 5: Solve for x
    x = 7,492,629,456.99/128,752.14
  6. Step 6: Final answer
    x = 58,194.21

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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.