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Finding the Fourth Proportional to 128,882.88, 193,262.97 and 52,969.56

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Solution

The fourth proportional to 128,882.88, 193,262.97 and 52,969.56 is: 79,429.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,882.88 : 193,262.97 = 52,969.56 : x
  2. Step 2: Convert to fraction form
    128,882.88/193,262.97 = 52,969.56/x
  3. Step 3: Cross multiply
    128,882.88x = 193,262.97 × 52,969.56
  4. Step 4: Simplify right side
    128,882.88x = 10,237,054,485.19
  5. Step 5: Solve for x
    x = 10,237,054,485.19/128,882.88
  6. Step 6: Final answer
    x = 79,429.13

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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.