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Finding the Fourth Proportional to 172,325.88, 258,151.86 and 112,980.42

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Solution

The fourth proportional to 172,325.88, 258,151.86 and 112,980.42 is: 169,249.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,325.88 : 258,151.86 = 112,980.42 : x
  2. Step 2: Convert to fraction form
    172,325.88/258,151.86 = 112,980.42/x
  3. Step 3: Cross multiply
    172,325.88x = 258,151.86 × 112,980.42
  4. Step 4: Simplify right side
    172,325.88x = 29,166,105,566.58
  5. Step 5: Solve for x
    x = 29,166,105,566.58/172,325.88
  6. Step 6: Final answer
    x = 169,249.71

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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.