Home / 187,790.25-281,685.75-45,635.67

Finding the Fourth Proportional to 187,790.25, 281,685.75 and 45,635.67

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Solution

The fourth proportional to 187,790.25, 281,685.75 and 45,635.67 is: 68,453.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,790.25 : 281,685.75 = 45,635.67 : x
  2. Step 2: Convert to fraction form
    187,790.25/281,685.75 = 45,635.67/x
  3. Step 3: Cross multiply
    187,790.25x = 281,685.75 × 45,635.67
  4. Step 4: Simplify right side
    187,790.25x = 12,854,917,930.70
  5. Step 5: Solve for x
    x = 12,854,917,930.70/187,790.25
  6. Step 6: Final answer
    x = 68,453.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.