Home / 172,701.33-259,086.93-72,861.75

Finding the Fourth Proportional to 172,701.33, 259,086.93 and 72,861.75

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Solution

The fourth proportional to 172,701.33, 259,086.93 and 72,861.75 is: 109,307.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,701.33 : 259,086.93 = 72,861.75 : x
  2. Step 2: Convert to fraction form
    172,701.33/259,086.93 = 72,861.75/x
  3. Step 3: Cross multiply
    172,701.33x = 259,086.93 × 72,861.75
  4. Step 4: Simplify right side
    172,701.33x = 18,877,527,121.93
  5. Step 5: Solve for x
    x = 18,877,527,121.93/172,701.33
  6. Step 6: Final answer
    x = 109,307.36

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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.