Home / 166,123.20-249,014.70-81,753.60

Finding the Fourth Proportional to 166,123.20, 249,014.70 and 81,753.60

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Solution

The fourth proportional to 166,123.20, 249,014.70 and 81,753.60 is: 122,546.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,123.20 : 249,014.70 = 81,753.60 : x
  2. Step 2: Convert to fraction form
    166,123.20/249,014.70 = 81,753.60/x
  3. Step 3: Cross multiply
    166,123.20x = 249,014.70 × 81,753.60
  4. Step 4: Simplify right side
    166,123.20x = 20,357,848,177.92
  5. Step 5: Solve for x
    x = 20,357,848,177.92/166,123.20
  6. Step 6: Final answer
    x = 122,546.69

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1.5x scale

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.