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Finding the Fourth Proportional to 149,717.60, 224,576.40 and 66,611.60

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Solution

The fourth proportional to 149,717.60, 224,576.40 and 66,611.60 is: 99,917.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,717.60 : 224,576.40 = 66,611.60 : x
  2. Step 2: Convert to fraction form
    149,717.60/224,576.40 = 66,611.60/x
  3. Step 3: Cross multiply
    149,717.60x = 224,576.40 × 66,611.60
  4. Step 4: Simplify right side
    149,717.60x = 14,959,393,326.24
  5. Step 5: Solve for x
    x = 14,959,393,326.24/149,717.60
  6. Step 6: Final answer
    x = 99,917.40

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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.