Home / 172,190.10-258,284.76-45,830.36

Finding the Fourth Proportional to 172,190.10, 258,284.76 and 45,830.36

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Solution

The fourth proportional to 172,190.10, 258,284.76 and 45,830.36 is: 68,745.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,190.10 : 258,284.76 = 45,830.36 : x
  2. Step 2: Convert to fraction form
    172,190.10/258,284.76 = 45,830.36/x
  3. Step 3: Cross multiply
    172,190.10x = 258,284.76 × 45,830.36
  4. Step 4: Simplify right side
    172,190.10x = 11,837,283,533.31
  5. Step 5: Solve for x
    x = 11,837,283,533.31/172,190.10
  6. Step 6: Final answer
    x = 68,745.44

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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.