Home / 190,359.10-285,429.30-57,219.40

Finding the Fourth Proportional to 190,359.10, 285,429.30 and 57,219.40

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Solution

The fourth proportional to 190,359.10, 285,429.30 and 57,219.40 is: 85,796.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,359.10 : 285,429.30 = 57,219.40 : x
  2. Step 2: Convert to fraction form
    190,359.10/285,429.30 = 57,219.40/x
  3. Step 3: Cross multiply
    190,359.10x = 285,429.30 × 57,219.40
  4. Step 4: Simplify right side
    190,359.10x = 16,332,093,288.42
  5. Step 5: Solve for x
    x = 16,332,093,288.42/190,359.10
  6. Step 6: Final answer
    x = 85,796.23

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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.