Home / 146,742.70-220,200.45-53,257.90

Finding the Fourth Proportional to 146,742.70, 220,200.45 and 53,257.90

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Solution

The fourth proportional to 146,742.70, 220,200.45 and 53,257.90 is: 79,918.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,742.70 : 220,200.45 = 53,257.90 : x
  2. Step 2: Convert to fraction form
    146,742.70/220,200.45 = 53,257.90/x
  3. Step 3: Cross multiply
    146,742.70x = 220,200.45 × 53,257.90
  4. Step 4: Simplify right side
    146,742.70x = 11,727,413,546.06
  5. Step 5: Solve for x
    x = 11,727,413,546.06/146,742.70
  6. Step 6: Final answer
    x = 79,918.21

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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.