Home / 205,140.96-307,534.80-80,452.32

Finding the Fourth Proportional to 205,140.96, 307,534.80 and 80,452.32

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Solution

The fourth proportional to 205,140.96, 307,534.80 and 80,452.32 is: 120,609.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,140.96 : 307,534.80 = 80,452.32 : x
  2. Step 2: Convert to fraction form
    205,140.96/307,534.80 = 80,452.32/x
  3. Step 3: Cross multiply
    205,140.96x = 307,534.80 × 80,452.32
  4. Step 4: Simplify right side
    205,140.96x = 24,741,888,140.74
  5. Step 5: Solve for x
    x = 24,741,888,140.74/205,140.96
  6. Step 6: Final answer
    x = 120,609.21

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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.