Home / 135,336.84-186,767.82-87,673.14

Finding the Fourth Proportional to 135,336.84, 186,767.82 and 87,673.14

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Solution

The fourth proportional to 135,336.84, 186,767.82 and 87,673.14 is: 120,990.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,336.84 : 186,767.82 = 87,673.14 : x
  2. Step 2: Convert to fraction form
    135,336.84/186,767.82 = 87,673.14/x
  3. Step 3: Cross multiply
    135,336.84x = 186,767.82 × 87,673.14
  4. Step 4: Simplify right side
    135,336.84x = 16,374,521,230.35
  5. Step 5: Solve for x
    x = 16,374,521,230.35/135,336.84
  6. Step 6: Final answer
    x = 120,990.86

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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.