Home / 166,411.20-249,446.70-82,041.60

Finding the Fourth Proportional to 166,411.20, 249,446.70 and 82,041.60

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Solution

The fourth proportional to 166,411.20, 249,446.70 and 82,041.60 is: 122,978.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,411.20 : 249,446.70 = 82,041.60 : x
  2. Step 2: Convert to fraction form
    166,411.20/249,446.70 = 82,041.60/x
  3. Step 3: Cross multiply
    166,411.20x = 249,446.70 × 82,041.60
  4. Step 4: Simplify right side
    166,411.20x = 20,465,006,382.72
  5. Step 5: Solve for x
    x = 20,465,006,382.72/166,411.20
  6. Step 6: Final answer
    x = 122,978.54

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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.