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Finding the Fourth Proportional to 172,748.99, 259,145.36 and 67,554.29

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Solution

The fourth proportional to 172,748.99, 259,145.36 and 67,554.29 is: 101,339.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,748.99 : 259,145.36 = 67,554.29 : x
  2. Step 2: Convert to fraction form
    172,748.99/259,145.36 = 67,554.29/x
  3. Step 3: Cross multiply
    172,748.99x = 259,145.36 × 67,554.29
  4. Step 4: Simplify right side
    172,748.99x = 17,506,379,168.10
  5. Step 5: Solve for x
    x = 17,506,379,168.10/172,748.99
  6. Step 6: Final answer
    x = 101,339.98

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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.