Home / 166,040.30-249,180.10-66,142.68

Finding the Fourth Proportional to 166,040.30, 249,180.10 and 66,142.68

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Solution

The fourth proportional to 166,040.30, 249,180.10 and 66,142.68 is: 99,261.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,040.30 : 249,180.10 = 66,142.68 : x
  2. Step 2: Convert to fraction form
    166,040.30/249,180.10 = 66,142.68/x
  3. Step 3: Cross multiply
    166,040.30x = 249,180.10 × 66,142.68
  4. Step 4: Simplify right side
    166,040.30x = 16,481,439,616.67
  5. Step 5: Solve for x
    x = 16,481,439,616.67/166,040.30
  6. Step 6: Final answer
    x = 99,261.68

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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.