Home / 129,039.98-193,553.12-40,283.31

Finding the Fourth Proportional to 129,039.98, 193,553.12 and 40,283.31

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Solution

The fourth proportional to 129,039.98, 193,553.12 and 40,283.31 is: 60,422.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,039.98 : 193,553.12 = 40,283.31 : x
  2. Step 2: Convert to fraction form
    129,039.98/193,553.12 = 40,283.31/x
  3. Step 3: Cross multiply
    129,039.98x = 193,553.12 × 40,283.31
  4. Step 4: Simplify right side
    129,039.98x = 7,796,960,133.01
  5. Step 5: Solve for x
    x = 7,796,960,133.01/129,039.98
  6. Step 6: Final answer
    x = 60,422.83

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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.