Home / 148,198.77-204,514.31-81,130.77

Finding the Fourth Proportional to 148,198.77, 204,514.31 and 81,130.77

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Solution

The fourth proportional to 148,198.77, 204,514.31 and 81,130.77 is: 111,960.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,198.77 : 204,514.31 = 81,130.77 : x
  2. Step 2: Convert to fraction form
    148,198.77/204,514.31 = 81,130.77/x
  3. Step 3: Cross multiply
    148,198.77x = 204,514.31 × 81,130.77
  4. Step 4: Simplify right side
    148,198.77x = 16,592,403,040.66
  5. Step 5: Solve for x
    x = 16,592,403,040.66/148,198.77
  6. Step 6: Final answer
    x = 111,960.46

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1.5x scale

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.