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Finding the Fourth Proportional to 166,039.80, 249,059.70 and 55,231.80

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Solution

The fourth proportional to 166,039.80, 249,059.70 and 55,231.80 is: 82,847.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,039.80 : 249,059.70 = 55,231.80 : x
  2. Step 2: Convert to fraction form
    166,039.80/249,059.70 = 55,231.80/x
  3. Step 3: Cross multiply
    166,039.80x = 249,059.70 × 55,231.80
  4. Step 4: Simplify right side
    166,039.80x = 13,756,015,538.46
  5. Step 5: Solve for x
    x = 13,756,015,538.46/166,039.80
  6. Step 6: Final answer
    x = 82,847.70

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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.