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Finding the Fourth Proportional to 166,033.79, 249,098.37 and 81,819.10

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Solution

The fourth proportional to 166,033.79, 249,098.37 and 81,819.10 is: 122,752.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,033.79 : 249,098.37 = 81,819.10 : x
  2. Step 2: Convert to fraction form
    166,033.79/249,098.37 = 81,819.10/x
  3. Step 3: Cross multiply
    166,033.79x = 249,098.37 × 81,819.10
  4. Step 4: Simplify right side
    166,033.79x = 20,381,004,444.87
  5. Step 5: Solve for x
    x = 20,381,004,444.87/166,033.79
  6. Step 6: Final answer
    x = 122,752.15

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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.