Home / 119,982.12-180,010.32-72,004.30

Finding the Fourth Proportional to 119,982.12, 180,010.32 and 72,004.30

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Solution

The fourth proportional to 119,982.12, 180,010.32 and 72,004.30 is: 108,028.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,982.12 : 180,010.32 = 72,004.30 : x
  2. Step 2: Convert to fraction form
    119,982.12/180,010.32 = 72,004.30/x
  3. Step 3: Cross multiply
    119,982.12x = 180,010.32 × 72,004.30
  4. Step 4: Simplify right side
    119,982.12x = 12,961,515,824.30
  5. Step 5: Solve for x
    x = 12,961,515,824.30/119,982.12
  6. Step 6: Final answer
    x = 108,028.73

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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.