Home / 148,844.88-205,405.08-80,861.30

Finding the Fourth Proportional to 148,844.88, 205,405.08 and 80,861.30

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Solution

The fourth proportional to 148,844.88, 205,405.08 and 80,861.30 is: 111,588.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,844.88 : 205,405.08 = 80,861.30 : x
  2. Step 2: Convert to fraction form
    148,844.88/205,405.08 = 80,861.30/x
  3. Step 3: Cross multiply
    148,844.88x = 205,405.08 × 80,861.30
  4. Step 4: Simplify right side
    148,844.88x = 16,609,321,795.40
  5. Step 5: Solve for x
    x = 16,609,321,795.40/148,844.88
  6. Step 6: Final answer
    x = 111,588.13

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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.