Home / 135,827.52-187,431.68-76,200

Finding the Fourth Proportional to 135,827.52, 187,431.68 and 76,200

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Solution

The fourth proportional to 135,827.52, 187,431.68 and 76,200 is: 105,150.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,827.52 : 187,431.68 = 76,200 : x
  2. Step 2: Convert to fraction form
    135,827.52/187,431.68 = 76,200/x
  3. Step 3: Cross multiply
    135,827.52x = 187,431.68 × 76,200
  4. Step 4: Simplify right side
    135,827.52x = 14,282,294,016
  5. Step 5: Solve for x
    x = 14,282,294,016/135,827.52
  6. Step 6: Final answer
    x = 105,150.22

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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.