Home / 187,171.35-280,786.18-112,273.89

Finding the Fourth Proportional to 187,171.35, 280,786.18 and 112,273.89

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Solution

The fourth proportional to 187,171.35, 280,786.18 and 112,273.89 is: 168,428.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,171.35 : 280,786.18 = 112,273.89 : x
  2. Step 2: Convert to fraction form
    187,171.35/280,786.18 = 112,273.89/x
  3. Step 3: Cross multiply
    187,171.35x = 280,786.18 × 112,273.89
  4. Step 4: Simplify right side
    187,171.35x = 31,524,956,686.84
  5. Step 5: Solve for x
    x = 31,524,956,686.84/187,171.35
  6. Step 6: Final answer
    x = 168,428.32

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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.