Home / 128,784.09-193,174.07-35,289.84

Finding the Fourth Proportional to 128,784.09, 193,174.07 and 35,289.84

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Solution

The fourth proportional to 128,784.09, 193,174.07 and 35,289.84 is: 52,934.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,784.09 : 193,174.07 = 35,289.84 : x
  2. Step 2: Convert to fraction form
    128,784.09/193,174.07 = 35,289.84/x
  3. Step 3: Cross multiply
    128,784.09x = 193,174.07 × 35,289.84
  4. Step 4: Simplify right side
    128,784.09x = 6,817,082,022.45
  5. Step 5: Solve for x
    x = 6,817,082,022.45/128,784.09
  6. Step 6: Final answer
    x = 52,934.19

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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.