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Finding the Fourth Proportional to 166,648.64, 250,056.80 and 66,880.13

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Solution

The fourth proportional to 166,648.64, 250,056.80 and 66,880.13 is: 100,353.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,648.64 : 250,056.80 = 66,880.13 : x
  2. Step 2: Convert to fraction form
    166,648.64/250,056.80 = 66,880.13/x
  3. Step 3: Cross multiply
    166,648.64x = 250,056.80 × 66,880.13
  4. Step 4: Simplify right side
    166,648.64x = 16,723,831,291.38
  5. Step 5: Solve for x
    x = 16,723,831,291.38/166,648.64
  6. Step 6: Final answer
    x = 100,353.84

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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.