Home / 103,011.12-154,540.77-31,930.03

Finding the Fourth Proportional to 103,011.12, 154,540.77 and 31,930.03

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Solution

The fourth proportional to 103,011.12, 154,540.77 and 31,930.03 is: 47,902.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,011.12 : 154,540.77 = 31,930.03 : x
  2. Step 2: Convert to fraction form
    103,011.12/154,540.77 = 31,930.03/x
  3. Step 3: Cross multiply
    103,011.12x = 154,540.77 × 31,930.03
  4. Step 4: Simplify right side
    103,011.12x = 4,934,491,422.32
  5. Step 5: Solve for x
    x = 4,934,491,422.32/103,011.12
  6. Step 6: Final answer
    x = 47,902.51

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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.