Home / 128,267.84-191,371.60-114,996.80

Finding the Fourth Proportional to 128,267.84, 191,371.60 and 114,996.80

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Solution

The fourth proportional to 128,267.84, 191,371.60 and 114,996.80 is: 171,571.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,267.84 : 191,371.60 = 114,996.80 : x
  2. Step 2: Convert to fraction form
    128,267.84/191,371.60 = 114,996.80/x
  3. Step 3: Cross multiply
    128,267.84x = 191,371.60 × 114,996.80
  4. Step 4: Simplify right side
    128,267.84x = 22,007,121,610.88
  5. Step 5: Solve for x
    x = 22,007,121,610.88/128,267.84
  6. Step 6: Final answer
    x = 171,571.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.