Home / 152,640.91-210,617.30-92,171.03

Finding the Fourth Proportional to 152,640.91, 210,617.30 and 92,171.03

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Solution

The fourth proportional to 152,640.91, 210,617.30 and 92,171.03 is: 127,179.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,640.91 : 210,617.30 = 92,171.03 : x
  2. Step 2: Convert to fraction form
    152,640.91/210,617.30 = 92,171.03/x
  3. Step 3: Cross multiply
    152,640.91x = 210,617.30 × 92,171.03
  4. Step 4: Simplify right side
    152,640.91x = 19,412,813,015.96
  5. Step 5: Solve for x
    x = 19,412,813,015.96/152,640.91
  6. Step 6: Final answer
    x = 127,179.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.