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Finding the Fourth Proportional to 166,456, 249,716.94 and 54,128.98

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Solution

The fourth proportional to 166,456, 249,716.94 and 54,128.98 is: 81,204.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,456 : 249,716.94 = 54,128.98 : x
  2. Step 2: Convert to fraction form
    166,456/249,716.94 = 54,128.98/x
  3. Step 3: Cross multiply
    166,456x = 249,716.94 × 54,128.98
  4. Step 4: Simplify right side
    166,456x = 13,516,923,250.92
  5. Step 5: Solve for x
    x = 13,516,923,250.92/166,456
  6. Step 6: Final answer
    x = 81,204.18

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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.