Home / 120,484.62-166,269.18-66,770.55

Finding the Fourth Proportional to 120,484.62, 166,269.18 and 66,770.55

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Solution

The fourth proportional to 120,484.62, 166,269.18 and 66,770.55 is: 92,143.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,484.62 : 166,269.18 = 66,770.55 : x
  2. Step 2: Convert to fraction form
    120,484.62/166,269.18 = 66,770.55/x
  3. Step 3: Cross multiply
    120,484.62x = 166,269.18 × 66,770.55
  4. Step 4: Simplify right side
    120,484.62x = 11,101,884,596.65
  5. Step 5: Solve for x
    x = 11,101,884,596.65/120,484.62
  6. Step 6: Final answer
    x = 92,143.58

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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.