Home / 166,619.80-249,735.30-66,730.60

Finding the Fourth Proportional to 166,619.80, 249,735.30 and 66,730.60

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Solution

The fourth proportional to 166,619.80, 249,735.30 and 66,730.60 is: 100,018.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,619.80 : 249,735.30 = 66,730.60 : x
  2. Step 2: Convert to fraction form
    166,619.80/249,735.30 = 66,730.60/x
  3. Step 3: Cross multiply
    166,619.80x = 249,735.30 × 66,730.60
  4. Step 4: Simplify right side
    166,619.80x = 16,664,986,410.18
  5. Step 5: Solve for x
    x = 16,664,986,410.18/166,619.80
  6. Step 6: Final answer
    x = 100,018.04

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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.