Home / 126,635.97-174,554.87-85,787.67

Finding the Fourth Proportional to 126,635.97, 174,554.87 and 85,787.67

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Solution

The fourth proportional to 126,635.97, 174,554.87 and 85,787.67 is: 118,249.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,635.97 : 174,554.87 = 85,787.67 : x
  2. Step 2: Convert to fraction form
    126,635.97/174,554.87 = 85,787.67/x
  3. Step 3: Cross multiply
    126,635.97x = 174,554.87 × 85,787.67
  4. Step 4: Simplify right side
    126,635.97x = 14,974,655,584.45
  5. Step 5: Solve for x
    x = 14,974,655,584.45/126,635.97
  6. Step 6: Final answer
    x = 118,249.62

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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.