Home / 128,591.07-192,832.38-48,615.54

Finding the Fourth Proportional to 128,591.07, 192,832.38 and 48,615.54

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Solution

The fourth proportional to 128,591.07, 192,832.38 and 48,615.54 is: 72,902.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,591.07 : 192,832.38 = 48,615.54 : x
  2. Step 2: Convert to fraction form
    128,591.07/192,832.38 = 48,615.54/x
  3. Step 3: Cross multiply
    128,591.07x = 192,832.38 × 48,615.54
  4. Step 4: Simplify right side
    128,591.07x = 9,374,650,283.19
  5. Step 5: Solve for x
    x = 9,374,650,283.19/128,591.07
  6. Step 6: Final answer
    x = 72,902.81

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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.