Home / 124,524.28-171,791.50-81,514.30

Finding the Fourth Proportional to 124,524.28, 171,791.50 and 81,514.30

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Solution

The fourth proportional to 124,524.28, 171,791.50 and 81,514.30 is: 112,455.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,524.28 : 171,791.50 = 81,514.30 : x
  2. Step 2: Convert to fraction form
    124,524.28/171,791.50 = 81,514.30/x
  3. Step 3: Cross multiply
    124,524.28x = 171,791.50 × 81,514.30
  4. Step 4: Simplify right side
    124,524.28x = 14,003,463,868.45
  5. Step 5: Solve for x
    x = 14,003,463,868.45/124,524.28
  6. Step 6: Final answer
    x = 112,455.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.