Home / 243,619.44-365,433.21-85,849.80

Finding the Fourth Proportional to 243,619.44, 365,433.21 and 85,849.80

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Solution

The fourth proportional to 243,619.44, 365,433.21 and 85,849.80 is: 128,776.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,619.44 : 365,433.21 = 85,849.80 : x
  2. Step 2: Convert to fraction form
    243,619.44/365,433.21 = 85,849.80/x
  3. Step 3: Cross multiply
    243,619.44x = 365,433.21 × 85,849.80
  4. Step 4: Simplify right side
    243,619.44x = 31,372,367,991.86
  5. Step 5: Solve for x
    x = 31,372,367,991.86/243,619.44
  6. Step 6: Final answer
    x = 128,776.13

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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.