Home / 166,806.20-249,869.10-103,431.80

Finding the Fourth Proportional to 166,806.20, 249,869.10 and 103,431.80

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Solution

The fourth proportional to 166,806.20, 249,869.10 and 103,431.80 is: 154,936.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,806.20 : 249,869.10 = 103,431.80 : x
  2. Step 2: Convert to fraction form
    166,806.20/249,869.10 = 103,431.80/x
  3. Step 3: Cross multiply
    166,806.20x = 249,869.10 × 103,431.80
  4. Step 4: Simplify right side
    166,806.20x = 25,844,410,777.38
  5. Step 5: Solve for x
    x = 25,844,410,777.38/166,806.20
  6. Step 6: Final answer
    x = 154,936.75

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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.