Home / 135,975.72-187,673.31-86,885.94

Finding the Fourth Proportional to 135,975.72, 187,673.31 and 86,885.94

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Solution

The fourth proportional to 135,975.72, 187,673.31 and 86,885.94 is: 119,919.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,975.72 : 187,673.31 = 86,885.94 : x
  2. Step 2: Convert to fraction form
    135,975.72/187,673.31 = 86,885.94/x
  3. Step 3: Cross multiply
    135,975.72x = 187,673.31 × 86,885.94
  4. Step 4: Simplify right side
    135,975.72x = 16,306,171,952.26
  5. Step 5: Solve for x
    x = 16,306,171,952.26/135,975.72
  6. Step 6: Final answer
    x = 119,919.73

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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.