Home / 172,038.04-258,087.32-78,553.24

Finding the Fourth Proportional to 172,038.04, 258,087.32 and 78,553.24

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Solution

The fourth proportional to 172,038.04, 258,087.32 and 78,553.24 is: 117,843.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,038.04 : 258,087.32 = 78,553.24 : x
  2. Step 2: Convert to fraction form
    172,038.04/258,087.32 = 78,553.24/x
  3. Step 3: Cross multiply
    172,038.04x = 258,087.32 × 78,553.24
  4. Step 4: Simplify right side
    172,038.04x = 20,273,595,188.92
  5. Step 5: Solve for x
    x = 20,273,595,188.92/172,038.04
  6. Step 6: Final answer
    x = 117,843.68

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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.