Home / 98,578.22-135,896.30-70,234.70

Finding the Fourth Proportional to 98,578.22, 135,896.30 and 70,234.70

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Solution

The fourth proportional to 98,578.22, 135,896.30 and 70,234.70 is: 96,822.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,578.22 : 135,896.30 = 70,234.70 : x
  2. Step 2: Convert to fraction form
    98,578.22/135,896.30 = 70,234.70/x
  3. Step 3: Cross multiply
    98,578.22x = 135,896.30 × 70,234.70
  4. Step 4: Simplify right side
    98,578.22x = 9,544,635,861.61
  5. Step 5: Solve for x
    x = 9,544,635,861.61/98,578.22
  6. Step 6: Final answer
    x = 96,822.97

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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.