Home / 203,427.90-305,190.45-98,160.30

Finding the Fourth Proportional to 203,427.90, 305,190.45 and 98,160.30

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Solution

The fourth proportional to 203,427.90, 305,190.45 and 98,160.30 is: 147,263.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,427.90 : 305,190.45 = 98,160.30 : x
  2. Step 2: Convert to fraction form
    203,427.90/305,190.45 = 98,160.30/x
  3. Step 3: Cross multiply
    203,427.90x = 305,190.45 × 98,160.30
  4. Step 4: Simplify right side
    203,427.90x = 29,957,586,129.14
  5. Step 5: Solve for x
    x = 29,957,586,129.14/203,427.90
  6. Step 6: Final answer
    x = 147,263.90

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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.