Home / 128,839.36-193,249.60-35,337.76

Finding the Fourth Proportional to 128,839.36, 193,249.60 and 35,337.76

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Solution

The fourth proportional to 128,839.36, 193,249.60 and 35,337.76 is: 53,004.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,839.36 : 193,249.60 = 35,337.76 : x
  2. Step 2: Convert to fraction form
    128,839.36/193,249.60 = 35,337.76/x
  3. Step 3: Cross multiply
    128,839.36x = 193,249.60 × 35,337.76
  4. Step 4: Simplify right side
    128,839.36x = 6,829,007,984.90
  5. Step 5: Solve for x
    x = 6,829,007,984.90/128,839.36
  6. Step 6: Final answer
    x = 53,004.05

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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.