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Finding the Fourth Proportional to 128,546.93, 192,788.93 and 53,667.69

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Solution

The fourth proportional to 128,546.93, 192,788.93 and 53,667.69 is: 80,488.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,546.93 : 192,788.93 = 53,667.69 : x
  2. Step 2: Convert to fraction form
    128,546.93/192,788.93 = 53,667.69/x
  3. Step 3: Cross multiply
    128,546.93x = 192,788.93 × 53,667.69
  4. Step 4: Simplify right side
    128,546.93x = 10,346,536,262.33
  5. Step 5: Solve for x
    x = 10,346,536,262.33/128,546.93
  6. Step 6: Final answer
    x = 80,488.40

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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.