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Finding the Fourth Proportional to 179,875.80, 269,910.90 and 80,051.40

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Solution

The fourth proportional to 179,875.80, 269,910.90 and 80,051.40 is: 120,120.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,875.80 : 269,910.90 = 80,051.40 : x
  2. Step 2: Convert to fraction form
    179,875.80/269,910.90 = 80,051.40/x
  3. Step 3: Cross multiply
    179,875.80x = 269,910.90 × 80,051.40
  4. Step 4: Simplify right side
    179,875.80x = 21,606,745,420.26
  5. Step 5: Solve for x
    x = 21,606,745,420.26/179,875.80
  6. Step 6: Final answer
    x = 120,120.36

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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.