Home / 166,636.40-249,976.20-82,439.60

Finding the Fourth Proportional to 166,636.40, 249,976.20 and 82,439.60

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Solution

The fourth proportional to 166,636.40, 249,976.20 and 82,439.60 is: 123,670.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,636.40 : 249,976.20 = 82,439.60 : x
  2. Step 2: Convert to fraction form
    166,636.40/249,976.20 = 82,439.60/x
  3. Step 3: Cross multiply
    166,636.40x = 249,976.20 × 82,439.60
  4. Step 4: Simplify right side
    166,636.40x = 20,607,937,937.52
  5. Step 5: Solve for x
    x = 20,607,937,937.52/166,636.40
  6. Step 6: Final answer
    x = 123,670.09

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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.