Home / 209,212.56-313,720.02-75,999.96

Finding the Fourth Proportional to 209,212.56, 313,720.02 and 75,999.96

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Solution

The fourth proportional to 209,212.56, 313,720.02 and 75,999.96 is: 113,964.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,212.56 : 313,720.02 = 75,999.96 : x
  2. Step 2: Convert to fraction form
    209,212.56/313,720.02 = 75,999.96/x
  3. Step 3: Cross multiply
    209,212.56x = 313,720.02 × 75,999.96
  4. Step 4: Simplify right side
    209,212.56x = 23,842,708,971.20
  5. Step 5: Solve for x
    x = 23,842,708,971.20/209,212.56
  6. Step 6: Final answer
    x = 113,964.04

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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.