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Finding the Fourth Proportional to 88,619.40, 122,450.40 and 70,860.96

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Solution

The fourth proportional to 88,619.40, 122,450.40 and 70,860.96 is: 97,912.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,619.40 : 122,450.40 = 70,860.96 : x
  2. Step 2: Convert to fraction form
    88,619.40/122,450.40 = 70,860.96/x
  3. Step 3: Cross multiply
    88,619.40x = 122,450.40 × 70,860.96
  4. Step 4: Simplify right side
    88,619.40x = 8,676,952,896.38
  5. Step 5: Solve for x
    x = 8,676,952,896.38/88,619.40
  6. Step 6: Final answer
    x = 97,912.57

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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.