Home / 190,832.61-286,380.12-66,173.61

Finding the Fourth Proportional to 190,832.61, 286,380.12 and 66,173.61

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Solution

The fourth proportional to 190,832.61, 286,380.12 and 66,173.61 is: 99,305.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,832.61 : 286,380.12 = 66,173.61 : x
  2. Step 2: Convert to fraction form
    190,832.61/286,380.12 = 66,173.61/x
  3. Step 3: Cross multiply
    190,832.61x = 286,380.12 × 66,173.61
  4. Step 4: Simplify right side
    190,832.61x = 18,950,806,372.63
  5. Step 5: Solve for x
    x = 18,950,806,372.63/190,832.61
  6. Step 6: Final answer
    x = 99,305.91

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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.