Home / 190,209.08-285,361-57,091.80

Finding the Fourth Proportional to 190,209.08, 285,361 and 57,091.80

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Solution

The fourth proportional to 190,209.08, 285,361 and 57,091.80 is: 85,651.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,209.08 : 285,361 = 57,091.80 : x
  2. Step 2: Convert to fraction form
    190,209.08/285,361 = 57,091.80/x
  3. Step 3: Cross multiply
    190,209.08x = 285,361 × 57,091.80
  4. Step 4: Simplify right side
    190,209.08x = 16,291,773,139.80
  5. Step 5: Solve for x
    x = 16,291,773,139.80/190,209.08
  6. Step 6: Final answer
    x = 85,651.92

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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.