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Finding the Fourth Proportional to 172,622.69, 258,767.96 and 88,422.51

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Solution

The fourth proportional to 172,622.69, 258,767.96 and 88,422.51 is: 132,548.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,622.69 : 258,767.96 = 88,422.51 : x
  2. Step 2: Convert to fraction form
    172,622.69/258,767.96 = 88,422.51/x
  3. Step 3: Cross multiply
    172,622.69x = 258,767.96 × 88,422.51
  4. Step 4: Simplify right side
    172,622.69x = 22,880,910,794.83
  5. Step 5: Solve for x
    x = 22,880,910,794.83/172,622.69
  6. Step 6: Final answer
    x = 132,548.69

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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.