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Finding the Fourth Proportional to 172,594.54, 258,921.33 and 79,108.30

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Solution

The fourth proportional to 172,594.54, 258,921.33 and 79,108.30 is: 118,675.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,594.54 : 258,921.33 = 79,108.30 : x
  2. Step 2: Convert to fraction form
    172,594.54/258,921.33 = 79,108.30/x
  3. Step 3: Cross multiply
    172,594.54x = 258,921.33 × 79,108.30
  4. Step 4: Simplify right side
    172,594.54x = 20,482,826,250.04
  5. Step 5: Solve for x
    x = 20,482,826,250.04/172,594.54
  6. Step 6: Final answer
    x = 118,675.98

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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.