Home / 190,315.53-285,167.12-123,918.21

Finding the Fourth Proportional to 190,315.53, 285,167.12 and 123,918.21

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Solution

The fourth proportional to 190,315.53, 285,167.12 and 123,918.21 is: 185,677.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,315.53 : 285,167.12 = 123,918.21 : x
  2. Step 2: Convert to fraction form
    190,315.53/285,167.12 = 123,918.21/x
  3. Step 3: Cross multiply
    190,315.53x = 285,167.12 × 123,918.21
  4. Step 4: Simplify right side
    190,315.53x = 35,337,398,441.66
  5. Step 5: Solve for x
    x = 35,337,398,441.66/190,315.53
  6. Step 6: Final answer
    x = 185,677.96

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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.