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Finding the Fourth Proportional to 122,369.62, 168,870.45 and 68,654.68

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Solution

The fourth proportional to 122,369.62, 168,870.45 and 68,654.68 is: 94,743.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,369.62 : 168,870.45 = 68,654.68 : x
  2. Step 2: Convert to fraction form
    122,369.62/168,870.45 = 68,654.68/x
  3. Step 3: Cross multiply
    122,369.62x = 168,870.45 × 68,654.68
  4. Step 4: Simplify right side
    122,369.62x = 11,593,746,706.21
  5. Step 5: Solve for x
    x = 11,593,746,706.21/122,369.62
  6. Step 6: Final answer
    x = 94,743.67

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1.5x scale

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.