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Finding the Fourth Proportional to 156,750.40, 234,866.40 and 133,422.40

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Solution

The fourth proportional to 156,750.40, 234,866.40 and 133,422.40 is: 199,912.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,750.40 : 234,866.40 = 133,422.40 : x
  2. Step 2: Convert to fraction form
    156,750.40/234,866.40 = 133,422.40/x
  3. Step 3: Cross multiply
    156,750.40x = 234,866.40 × 133,422.40
  4. Step 4: Simplify right side
    156,750.40x = 31,336,438,767.36
  5. Step 5: Solve for x
    x = 31,336,438,767.36/156,750.40
  6. Step 6: Final answer
    x = 199,912.97

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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.