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Finding the Fourth Proportional to 169,992.24, 254,988 and 80,975.76

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Solution

The fourth proportional to 169,992.24, 254,988 and 80,975.76 is: 121,463.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,992.24 : 254,988 = 80,975.76 : x
  2. Step 2: Convert to fraction form
    169,992.24/254,988 = 80,975.76/x
  3. Step 3: Cross multiply
    169,992.24x = 254,988 × 80,975.76
  4. Step 4: Simplify right side
    169,992.24x = 20,647,847,090.88
  5. Step 5: Solve for x
    x = 20,647,847,090.88/169,992.24
  6. Step 6: Final answer
    x = 121,463.47

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1.5x scale

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.