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Finding the Fourth Proportional to 172,614.03, 258,918.61 and 47,955.03

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Solution

The fourth proportional to 172,614.03, 258,918.61 and 47,955.03 is: 71,931.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,614.03 : 258,918.61 = 47,955.03 : x
  2. Step 2: Convert to fraction form
    172,614.03/258,918.61 = 47,955.03/x
  3. Step 3: Cross multiply
    172,614.03x = 258,918.61 × 47,955.03
  4. Step 4: Simplify right side
    172,614.03x = 12,416,449,710.11
  5. Step 5: Solve for x
    x = 12,416,449,710.11/172,614.03
  6. Step 6: Final answer
    x = 71,931.87

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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.