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Finding the Fourth Proportional to 172,951.10, 238,636.23 and 105,003.85

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Solution

The fourth proportional to 172,951.10, 238,636.23 and 105,003.85 is: 144,883.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,951.10 : 238,636.23 = 105,003.85 : x
  2. Step 2: Convert to fraction form
    172,951.10/238,636.23 = 105,003.85/x
  3. Step 3: Cross multiply
    172,951.10x = 238,636.23 × 105,003.85
  4. Step 4: Simplify right side
    172,951.10x = 25,057,721,706.30
  5. Step 5: Solve for x
    x = 25,057,721,706.30/172,951.10
  6. Step 6: Final answer
    x = 144,883.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.