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Finding the Fourth Proportional to 172,097.44, 258,107.36 and 72,370.24

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Solution

The fourth proportional to 172,097.44, 258,107.36 and 72,370.24 is: 108,539.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,097.44 : 258,107.36 = 72,370.24 : x
  2. Step 2: Convert to fraction form
    172,097.44/258,107.36 = 72,370.24/x
  3. Step 3: Cross multiply
    172,097.44x = 258,107.36 × 72,370.24
  4. Step 4: Simplify right side
    172,097.44x = 18,679,291,588.97
  5. Step 5: Solve for x
    x = 18,679,291,588.97/172,097.44
  6. Step 6: Final answer
    x = 108,539.04

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1.5x scale

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.