Home / 190,829.86-286,376.00-66,170.86

Finding the Fourth Proportional to 190,829.86, 286,376.00 and 66,170.86

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Solution

The fourth proportional to 190,829.86, 286,376.00 and 66,170.86 is: 99,301.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,829.86 : 286,376.00 = 66,170.86 : x
  2. Step 2: Convert to fraction form
    190,829.86/286,376.00 = 66,170.86/x
  3. Step 3: Cross multiply
    190,829.86x = 286,376.00 × 66,170.86
  4. Step 4: Simplify right side
    190,829.86x = 18,949,745,156.57
  5. Step 5: Solve for x
    x = 18,949,745,156.57/190,829.86
  6. Step 6: Final answer
    x = 99,301.78

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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.