Home / 170,621.32-255,691.40-80,567.96

Finding the Fourth Proportional to 170,621.32, 255,691.40 and 80,567.96

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Solution

The fourth proportional to 170,621.32, 255,691.40 and 80,567.96 is: 120,738.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,621.32 : 255,691.40 = 80,567.96 : x
  2. Step 2: Convert to fraction form
    170,621.32/255,691.40 = 80,567.96/x
  3. Step 3: Cross multiply
    170,621.32x = 255,691.40 × 80,567.96
  4. Step 4: Simplify right side
    170,621.32x = 20,600,534,487.54
  5. Step 5: Solve for x
    x = 20,600,534,487.54/170,621.32
  6. Step 6: Final answer
    x = 120,738.34

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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.