Home / 135,849.33-187,349.16-84,866.70

Finding the Fourth Proportional to 135,849.33, 187,349.16 and 84,866.70

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Solution

The fourth proportional to 135,849.33, 187,349.16 and 84,866.70 is: 117,039.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,849.33 : 187,349.16 = 84,866.70 : x
  2. Step 2: Convert to fraction form
    135,849.33/187,349.16 = 84,866.70/x
  3. Step 3: Cross multiply
    135,849.33x = 187,349.16 × 84,866.70
  4. Step 4: Simplify right side
    135,849.33x = 15,899,704,956.97
  5. Step 5: Solve for x
    x = 15,899,704,956.97/135,849.33
  6. Step 6: Final answer
    x = 117,039.26

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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.