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Finding the Fourth Proportional to 166,334.80, 249,658.80 and 87,505.60

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Solution

The fourth proportional to 166,334.80, 249,658.80 and 87,505.60 is: 131,340.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,334.80 : 249,658.80 = 87,505.60 : x
  2. Step 2: Convert to fraction form
    166,334.80/249,658.80 = 87,505.60/x
  3. Step 3: Cross multiply
    166,334.80x = 249,658.80 × 87,505.60
  4. Step 4: Simplify right side
    166,334.80x = 21,846,543,089.28
  5. Step 5: Solve for x
    x = 21,846,543,089.28/166,334.80
  6. Step 6: Final answer
    x = 131,340.78

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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.