Home / 105,917.28-158,873.85-42,736.11

Finding the Fourth Proportional to 105,917.28, 158,873.85 and 42,736.11

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Solution

The fourth proportional to 105,917.28, 158,873.85 and 42,736.11 is: 64,103.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,917.28 : 158,873.85 = 42,736.11 : x
  2. Step 2: Convert to fraction form
    105,917.28/158,873.85 = 42,736.11/x
  3. Step 3: Cross multiply
    105,917.28x = 158,873.85 × 42,736.11
  4. Step 4: Simplify right side
    105,917.28x = 6,789,650,329.72
  5. Step 5: Solve for x
    x = 6,789,650,329.72/105,917.28
  6. Step 6: Final answer
    x = 64,103.33

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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.