Home / 188,665.21-282,997.82-129,320.97

Finding the Fourth Proportional to 188,665.21, 282,997.82 and 129,320.97

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Solution

The fourth proportional to 188,665.21, 282,997.82 and 129,320.97 is: 193,981.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,665.21 : 282,997.82 = 129,320.97 : x
  2. Step 2: Convert to fraction form
    188,665.21/282,997.82 = 129,320.97/x
  3. Step 3: Cross multiply
    188,665.21x = 282,997.82 × 129,320.97
  4. Step 4: Simplify right side
    188,665.21x = 36,597,551,852.35
  5. Step 5: Solve for x
    x = 36,597,551,852.35/188,665.21
  6. Step 6: Final answer
    x = 193,981.45

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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.