Home / 172,986.42-259,514.64-73,146.45

Finding the Fourth Proportional to 172,986.42, 259,514.64 and 73,146.45

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Solution

The fourth proportional to 172,986.42, 259,514.64 and 73,146.45 is: 109,734.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,986.42 : 259,514.64 = 73,146.45 : x
  2. Step 2: Convert to fraction form
    172,986.42/259,514.64 = 73,146.45/x
  3. Step 3: Cross multiply
    172,986.42x = 259,514.64 × 73,146.45
  4. Step 4: Simplify right side
    172,986.42x = 18,982,574,639.03
  5. Step 5: Solve for x
    x = 18,982,574,639.03/172,986.42
  6. Step 6: Final answer
    x = 109,734.48

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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.