Home / 190,767.78-286,202.82-66,108.78

Finding the Fourth Proportional to 190,767.78, 286,202.82 and 66,108.78

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Solution

The fourth proportional to 190,767.78, 286,202.82 and 66,108.78 is: 99,180.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,767.78 : 286,202.82 = 66,108.78 : x
  2. Step 2: Convert to fraction form
    190,767.78/286,202.82 = 66,108.78/x
  3. Step 3: Cross multiply
    190,767.78x = 286,202.82 × 66,108.78
  4. Step 4: Simplify right side
    190,767.78x = 18,920,519,262.76
  5. Step 5: Solve for x
    x = 18,920,519,262.76/190,767.78
  6. Step 6: Final answer
    x = 99,180.90

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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.