Home / 187,854.31-259,249.55-111,418.66

Finding the Fourth Proportional to 187,854.31, 259,249.55 and 111,418.66

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Solution

The fourth proportional to 187,854.31, 259,249.55 and 111,418.66 is: 153,764.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,854.31 : 259,249.55 = 111,418.66 : x
  2. Step 2: Convert to fraction form
    187,854.31/259,249.55 = 111,418.66/x
  3. Step 3: Cross multiply
    187,854.31x = 259,249.55 × 111,418.66
  4. Step 4: Simplify right side
    187,854.31x = 28,885,235,613.26
  5. Step 5: Solve for x
    x = 28,885,235,613.26/187,854.31
  6. Step 6: Final answer
    x = 153,764.03

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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.