Home / 171,186.44-257,028.91-121,530.20

Finding the Fourth Proportional to 171,186.44, 257,028.91 and 121,530.20

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Solution

The fourth proportional to 171,186.44, 257,028.91 and 121,530.20 is: 182,472.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,186.44 : 257,028.91 = 121,530.20 : x
  2. Step 2: Convert to fraction form
    171,186.44/257,028.91 = 121,530.20/x
  3. Step 3: Cross multiply
    171,186.44x = 257,028.91 × 121,530.20
  4. Step 4: Simplify right side
    171,186.44x = 31,236,773,249.11
  5. Step 5: Solve for x
    x = 31,236,773,249.11/171,186.44
  6. Step 6: Final answer
    x = 182,472.25

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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.