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Finding the Fourth Proportional to 166,704.48, 249,806 and 66,765.60

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Solution

The fourth proportional to 166,704.48, 249,806 and 66,765.60 is: 100,047.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,704.48 : 249,806 = 66,765.60 : x
  2. Step 2: Convert to fraction form
    166,704.48/249,806 = 66,765.60/x
  3. Step 3: Cross multiply
    166,704.48x = 249,806 × 66,765.60
  4. Step 4: Simplify right side
    166,704.48x = 16,678,447,473.60
  5. Step 5: Solve for x
    x = 16,678,447,473.60/166,704.48
  6. Step 6: Final answer
    x = 100,047.99

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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.