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Finding the Fourth Proportional to 103,037.69, 154,578.68 and 31,958.84

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Solution

The fourth proportional to 103,037.69, 154,578.68 and 31,958.84 is: 47,945.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,037.69 : 154,578.68 = 31,958.84 : x
  2. Step 2: Convert to fraction form
    103,037.69/154,578.68 = 31,958.84/x
  3. Step 3: Cross multiply
    103,037.69x = 154,578.68 × 31,958.84
  4. Step 4: Simplify right side
    103,037.69x = 4,940,155,648.03
  5. Step 5: Solve for x
    x = 4,940,155,648.03/103,037.69
  6. Step 6: Final answer
    x = 47,945.13

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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.