Home / 103,011.28-154,540.88-31,930.14

Finding the Fourth Proportional to 103,011.28, 154,540.88 and 31,930.14

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Solution

The fourth proportional to 103,011.28, 154,540.88 and 31,930.14 is: 47,902.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,011.28 : 154,540.88 = 31,930.14 : x
  2. Step 2: Convert to fraction form
    103,011.28/154,540.88 = 31,930.14/x
  3. Step 3: Cross multiply
    103,011.28x = 154,540.88 × 31,930.14
  4. Step 4: Simplify right side
    103,011.28x = 4,934,511,934.12
  5. Step 5: Solve for x
    x = 4,934,511,934.12/103,011.28
  6. Step 6: Final answer
    x = 47,902.64

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1.5x scale

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.