Home / 132,638.14-182,986.44-81,635.44

Finding the Fourth Proportional to 132,638.14, 182,986.44 and 81,635.44

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Solution

The fourth proportional to 132,638.14, 182,986.44 and 81,635.44 is: 112,623.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,638.14 : 182,986.44 = 81,635.44 : x
  2. Step 2: Convert to fraction form
    132,638.14/182,986.44 = 81,635.44/x
  3. Step 3: Cross multiply
    132,638.14x = 182,986.44 × 81,635.44
  4. Step 4: Simplify right side
    132,638.14x = 14,938,178,543.43
  5. Step 5: Solve for x
    x = 14,938,178,543.43/132,638.14
  6. Step 6: Final answer
    x = 112,623.55

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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.