Home / 190,790.92-286,186.40-66,131.92

Finding the Fourth Proportional to 190,790.92, 286,186.40 and 66,131.92

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Solution

The fourth proportional to 190,790.92, 286,186.40 and 66,131.92 is: 99,197.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,790.92 : 286,186.40 = 66,131.92 : x
  2. Step 2: Convert to fraction form
    190,790.92/286,186.40 = 66,131.92/x
  3. Step 3: Cross multiply
    190,790.92x = 286,186.40 × 66,131.92
  4. Step 4: Simplify right side
    190,790.92x = 18,926,056,109.89
  5. Step 5: Solve for x
    x = 18,926,056,109.89/190,790.92
  6. Step 6: Final answer
    x = 99,197.89

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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.