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Finding the Fourth Proportional to 178,533.60, 267,611.40 and 66,141.60

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Solution

The fourth proportional to 178,533.60, 267,611.40 and 66,141.60 is: 99,142.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,533.60 : 267,611.40 = 66,141.60 : x
  2. Step 2: Convert to fraction form
    178,533.60/267,611.40 = 66,141.60/x
  3. Step 3: Cross multiply
    178,533.60x = 267,611.40 × 66,141.60
  4. Step 4: Simplify right side
    178,533.60x = 17,700,246,174.24
  5. Step 5: Solve for x
    x = 17,700,246,174.24/178,533.60
  6. Step 6: Final answer
    x = 99,142.38

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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.