Home / 128,327.83-192,513.60-39,564.79

Finding the Fourth Proportional to 128,327.83, 192,513.60 and 39,564.79

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Solution

The fourth proportional to 128,327.83, 192,513.60 and 39,564.79 is: 59,353.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,327.83 : 192,513.60 = 39,564.79 : x
  2. Step 2: Convert to fraction form
    128,327.83/192,513.60 = 39,564.79/x
  3. Step 3: Cross multiply
    128,327.83x = 192,513.60 × 39,564.79
  4. Step 4: Simplify right side
    128,327.83x = 7,616,759,674.86
  5. Step 5: Solve for x
    x = 7,616,759,674.86/128,327.83
  6. Step 6: Final answer
    x = 59,353.92

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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.