Home / 89,317.28-133,850.82-67,116.50

Finding the Fourth Proportional to 89,317.28, 133,850.82 and 67,116.50

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Solution

The fourth proportional to 89,317.28, 133,850.82 and 67,116.50 is: 100,580.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,317.28 : 133,850.82 = 67,116.50 : x
  2. Step 2: Convert to fraction form
    89,317.28/133,850.82 = 67,116.50/x
  3. Step 3: Cross multiply
    89,317.28x = 133,850.82 × 67,116.50
  4. Step 4: Simplify right side
    89,317.28x = 8,983,598,560.53
  5. Step 5: Solve for x
    x = 8,983,598,560.53/89,317.28
  6. Step 6: Final answer
    x = 100,580.74

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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.