Home / 103,348.20-155,022.30-102,570.60

Finding the Fourth Proportional to 103,348.20, 155,022.30 and 102,570.60

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Solution

The fourth proportional to 103,348.20, 155,022.30 and 102,570.60 is: 153,855.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,348.20 : 155,022.30 = 102,570.60 : x
  2. Step 2: Convert to fraction form
    103,348.20/155,022.30 = 102,570.60/x
  3. Step 3: Cross multiply
    103,348.20x = 155,022.30 × 102,570.60
  4. Step 4: Simplify right side
    103,348.20x = 15,900,730,324.38
  5. Step 5: Solve for x
    x = 15,900,730,324.38/103,348.20
  6. Step 6: Final answer
    x = 153,855.90

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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.