Home / 172,814.72-259,128.27-77,933.89

Finding the Fourth Proportional to 172,814.72, 259,128.27 and 77,933.89

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Solution

The fourth proportional to 172,814.72, 259,128.27 and 77,933.89 is: 116,858.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,814.72 : 259,128.27 = 77,933.89 : x
  2. Step 2: Convert to fraction form
    172,814.72/259,128.27 = 77,933.89/x
  3. Step 3: Cross multiply
    172,814.72x = 259,128.27 × 77,933.89
  4. Step 4: Simplify right side
    172,814.72x = 20,194,874,090.07
  5. Step 5: Solve for x
    x = 20,194,874,090.07/172,814.72
  6. Step 6: Final answer
    x = 116,858.53

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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.