Home / 172,469.36-258,704.10-77,588.72

Finding the Fourth Proportional to 172,469.36, 258,704.10 and 77,588.72

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Solution

The fourth proportional to 172,469.36, 258,704.10 and 77,588.72 is: 116,383.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,469.36 : 258,704.10 = 77,588.72 : x
  2. Step 2: Convert to fraction form
    172,469.36/258,704.10 = 77,588.72/x
  3. Step 3: Cross multiply
    172,469.36x = 258,704.10 × 77,588.72
  4. Step 4: Simplify right side
    172,469.36x = 20,072,518,684.23
  5. Step 5: Solve for x
    x = 20,072,518,684.23/172,469.36
  6. Step 6: Final answer
    x = 116,383.10

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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.