Home / 166,772.20-249,988.20-82,402.60

Finding the Fourth Proportional to 166,772.20, 249,988.20 and 82,402.60

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Solution

The fourth proportional to 166,772.20, 249,988.20 and 82,402.60 is: 123,519.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,772.20 : 249,988.20 = 82,402.60 : x
  2. Step 2: Convert to fraction form
    166,772.20/249,988.20 = 82,402.60/x
  3. Step 3: Cross multiply
    166,772.20x = 249,988.20 × 82,402.60
  4. Step 4: Simplify right side
    166,772.20x = 20,599,677,649.32
  5. Step 5: Solve for x
    x = 20,599,677,649.32/166,772.20
  6. Step 6: Final answer
    x = 123,519.85

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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.