Home / 166,520.75-229,841.35-102,821.94

Finding the Fourth Proportional to 166,520.75, 229,841.35 and 102,821.94

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Solution

The fourth proportional to 166,520.75, 229,841.35 and 102,821.94 is: 141,920.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,520.75 : 229,841.35 = 102,821.94 : x
  2. Step 2: Convert to fraction form
    166,520.75/229,841.35 = 102,821.94/x
  3. Step 3: Cross multiply
    166,520.75x = 229,841.35 × 102,821.94
  4. Step 4: Simplify right side
    166,520.75x = 23,632,733,242.16
  5. Step 5: Solve for x
    x = 23,632,733,242.16/166,520.75
  6. Step 6: Final answer
    x = 141,920.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.