Home / 166,312.70-249,469.05-82,113.20

Finding the Fourth Proportional to 166,312.70, 249,469.05 and 82,113.20

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Solution

The fourth proportional to 166,312.70, 249,469.05 and 82,113.20 is: 123,169.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,312.70 : 249,469.05 = 82,113.20 : x
  2. Step 2: Convert to fraction form
    166,312.70/249,469.05 = 82,113.20/x
  3. Step 3: Cross multiply
    166,312.70x = 249,469.05 × 82,113.20
  4. Step 4: Simplify right side
    166,312.70x = 20,484,701,996.46
  5. Step 5: Solve for x
    x = 20,484,701,996.46/166,312.70
  6. Step 6: Final answer
    x = 123,169.80

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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.