Home / 97,861.10-135,015.80-67,635.54

Finding the Fourth Proportional to 97,861.10, 135,015.80 and 67,635.54

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Solution

The fourth proportional to 97,861.10, 135,015.80 and 67,635.54 is: 93,314.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,861.10 : 135,015.80 = 67,635.54 : x
  2. Step 2: Convert to fraction form
    97,861.10/135,015.80 = 67,635.54/x
  3. Step 3: Cross multiply
    97,861.10x = 135,015.80 × 67,635.54
  4. Step 4: Simplify right side
    97,861.10x = 9,131,866,203.35
  5. Step 5: Solve for x
    x = 9,131,866,203.35/97,861.10
  6. Step 6: Final answer
    x = 93,314.57

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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.