Home / 103,748.40-155,622.60-103,092.30

Finding the Fourth Proportional to 103,748.40, 155,622.60 and 103,092.30

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Solution

The fourth proportional to 103,748.40, 155,622.60 and 103,092.30 is: 154,638.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,748.40 : 155,622.60 = 103,092.30 : x
  2. Step 2: Convert to fraction form
    103,748.40/155,622.60 = 103,092.30/x
  3. Step 3: Cross multiply
    103,748.40x = 155,622.60 × 103,092.30
  4. Step 4: Simplify right side
    103,748.40x = 16,043,491,765.98
  5. Step 5: Solve for x
    x = 16,043,491,765.98/103,748.40
  6. Step 6: Final answer
    x = 154,638.45

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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.