Home / 101,221.23-138,672.44-97,436.30

Finding the Fourth Proportional to 101,221.23, 138,672.44 and 97,436.30

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Solution

The fourth proportional to 101,221.23, 138,672.44 and 97,436.30 is: 133,487.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,221.23 : 138,672.44 = 97,436.30 : x
  2. Step 2: Convert to fraction form
    101,221.23/138,672.44 = 97,436.30/x
  3. Step 3: Cross multiply
    101,221.23x = 138,672.44 × 97,436.30
  4. Step 4: Simplify right side
    101,221.23x = 13,511,728,285.03
  5. Step 5: Solve for x
    x = 13,511,728,285.03/101,221.23
  6. Step 6: Final answer
    x = 133,487.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.