Home / 189,992.52-262,175.85-105,111

Finding the Fourth Proportional to 189,992.52, 262,175.85 and 105,111

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Solution

The fourth proportional to 189,992.52, 262,175.85 and 105,111 is: 145,045.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,992.52 : 262,175.85 = 105,111 : x
  2. Step 2: Convert to fraction form
    189,992.52/262,175.85 = 105,111/x
  3. Step 3: Cross multiply
    189,992.52x = 262,175.85 × 105,111
  4. Step 4: Simplify right side
    189,992.52x = 27,557,565,769.35
  5. Step 5: Solve for x
    x = 27,557,565,769.35/189,992.52
  6. Step 6: Final answer
    x = 145,045.53

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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.