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Finding the Fourth Proportional to 172,561.68, 258,830.04 and 54,266.85

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Solution

The fourth proportional to 172,561.68, 258,830.04 and 54,266.85 is: 81,396.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,561.68 : 258,830.04 = 54,266.85 : x
  2. Step 2: Convert to fraction form
    172,561.68/258,830.04 = 54,266.85/x
  3. Step 3: Cross multiply
    172,561.68x = 258,830.04 × 54,266.85
  4. Step 4: Simplify right side
    172,561.68x = 14,045,890,956.17
  5. Step 5: Solve for x
    x = 14,045,890,956.17/172,561.68
  6. Step 6: Final answer
    x = 81,396.35

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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.