Home / 135,541.44-187,052.02-81,815.96

Finding the Fourth Proportional to 135,541.44, 187,052.02 and 81,815.96

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Solution

The fourth proportional to 135,541.44, 187,052.02 and 81,815.96 is: 112,908.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,541.44 : 187,052.02 = 81,815.96 : x
  2. Step 2: Convert to fraction form
    135,541.44/187,052.02 = 81,815.96/x
  3. Step 3: Cross multiply
    135,541.44x = 187,052.02 × 81,815.96
  4. Step 4: Simplify right side
    135,541.44x = 15,303,840,849.33
  5. Step 5: Solve for x
    x = 15,303,840,849.33/135,541.44
  6. Step 6: Final answer
    x = 112,908.94

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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.