Home / 166,474.20-249,711.30-72,979.95

Finding the Fourth Proportional to 166,474.20, 249,711.30 and 72,979.95

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Solution

The fourth proportional to 166,474.20, 249,711.30 and 72,979.95 is: 109,469.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,474.20 : 249,711.30 = 72,979.95 : x
  2. Step 2: Convert to fraction form
    166,474.20/249,711.30 = 72,979.95/x
  3. Step 3: Cross multiply
    166,474.20x = 249,711.30 × 72,979.95
  4. Step 4: Simplify right side
    166,474.20x = 18,223,918,188.44
  5. Step 5: Solve for x
    x = 18,223,918,188.44/166,474.20
  6. Step 6: Final answer
    x = 109,469.93

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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.