Home / 281,355.12-422,069.74-91,748.90

Finding the Fourth Proportional to 281,355.12, 422,069.74 and 91,748.90

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Solution

The fourth proportional to 281,355.12, 422,069.74 and 91,748.90 is: 137,635.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,355.12 : 422,069.74 = 91,748.90 : x
  2. Step 2: Convert to fraction form
    281,355.12/422,069.74 = 91,748.90/x
  3. Step 3: Cross multiply
    281,355.12x = 422,069.74 × 91,748.90
  4. Step 4: Simplify right side
    281,355.12x = 38,724,435,194.09
  5. Step 5: Solve for x
    x = 38,724,435,194.09/281,355.12
  6. Step 6: Final answer
    x = 137,635.44

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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.