Home / 172,639.90-258,943.44-60,299.38

Finding the Fourth Proportional to 172,639.90, 258,943.44 and 60,299.38

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Solution

The fourth proportional to 172,639.90, 258,943.44 and 60,299.38 is: 90,443.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,639.90 : 258,943.44 = 60,299.38 : x
  2. Step 2: Convert to fraction form
    172,639.90/258,943.44 = 60,299.38/x
  3. Step 3: Cross multiply
    172,639.90x = 258,943.44 × 60,299.38
  4. Step 4: Simplify right side
    172,639.90x = 15,614,127,592.35
  5. Step 5: Solve for x
    x = 15,614,127,592.35/172,639.90
  6. Step 6: Final answer
    x = 90,443.33

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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.