Home / 103,454.96-155,179.37-28,579.61

Finding the Fourth Proportional to 103,454.96, 155,179.37 and 28,579.61

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Solution

The fourth proportional to 103,454.96, 155,179.37 and 28,579.61 is: 42,868.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,454.96 : 155,179.37 = 28,579.61 : x
  2. Step 2: Convert to fraction form
    103,454.96/155,179.37 = 28,579.61/x
  3. Step 3: Cross multiply
    103,454.96x = 155,179.37 × 28,579.61
  4. Step 4: Simplify right side
    103,454.96x = 4,434,964,955.85
  5. Step 5: Solve for x
    x = 4,434,964,955.85/103,454.96
  6. Step 6: Final answer
    x = 42,868.56

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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.