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Finding the Fourth Proportional to 163,438.56, 225,591.84 and 95,472

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Solution

The fourth proportional to 163,438.56, 225,591.84 and 95,472 is: 131,778.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,438.56 : 225,591.84 = 95,472 : x
  2. Step 2: Convert to fraction form
    163,438.56/225,591.84 = 95,472/x
  3. Step 3: Cross multiply
    163,438.56x = 225,591.84 × 95,472
  4. Step 4: Simplify right side
    163,438.56x = 21,537,704,148.48
  5. Step 5: Solve for x
    x = 21,537,704,148.48/163,438.56
  6. Step 6: Final answer
    x = 131,778.60

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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.