Home / 172,557.24-258,491.25-137,078.63

Finding the Fourth Proportional to 172,557.24, 258,491.25 and 137,078.63

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Solution

The fourth proportional to 172,557.24, 258,491.25 and 137,078.63 is: 205,344.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,557.24 : 258,491.25 = 137,078.63 : x
  2. Step 2: Convert to fraction form
    172,557.24/258,491.25 = 137,078.63/x
  3. Step 3: Cross multiply
    172,557.24x = 258,491.25 × 137,078.63
  4. Step 4: Simplify right side
    172,557.24x = 35,433,626,093.87
  5. Step 5: Solve for x
    x = 35,433,626,093.87/172,557.24
  6. Step 6: Final answer
    x = 205,344.19

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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.