Home / 123,354.89-185,039.06-39,108.96

Finding the Fourth Proportional to 123,354.89, 185,039.06 and 39,108.96

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Solution

The fourth proportional to 123,354.89, 185,039.06 and 39,108.96 is: 58,665.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,354.89 : 185,039.06 = 39,108.96 : x
  2. Step 2: Convert to fraction form
    123,354.89/185,039.06 = 39,108.96/x
  3. Step 3: Cross multiply
    123,354.89x = 185,039.06 × 39,108.96
  4. Step 4: Simplify right side
    123,354.89x = 7,236,685,195.98
  5. Step 5: Solve for x
    x = 7,236,685,195.98/123,354.89
  6. Step 6: Final answer
    x = 58,665.57

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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.