Home / 189,236.84-261,134.91-108,607.61

Finding the Fourth Proportional to 189,236.84, 261,134.91 and 108,607.61

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Solution

The fourth proportional to 189,236.84, 261,134.91 and 108,607.61 is: 149,871.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,236.84 : 261,134.91 = 108,607.61 : x
  2. Step 2: Convert to fraction form
    189,236.84/261,134.91 = 108,607.61/x
  3. Step 3: Cross multiply
    189,236.84x = 261,134.91 × 108,607.61
  4. Step 4: Simplify right side
    189,236.84x = 28,361,238,462.67
  5. Step 5: Solve for x
    x = 28,361,238,462.67/189,236.84
  6. Step 6: Final answer
    x = 149,871.66

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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.