Home / 105,505.43-158,258.40-26,619.65

Finding the Fourth Proportional to 105,505.43, 158,258.40 and 26,619.65

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Solution

The fourth proportional to 105,505.43, 158,258.40 and 26,619.65 is: 39,929.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,505.43 : 158,258.40 = 26,619.65 : x
  2. Step 2: Convert to fraction form
    105,505.43/158,258.40 = 26,619.65/x
  3. Step 3: Cross multiply
    105,505.43x = 158,258.40 × 26,619.65
  4. Step 4: Simplify right side
    105,505.43x = 4,212,782,426.27
  5. Step 5: Solve for x
    x = 4,212,782,426.27/105,505.43
  6. Step 6: Final answer
    x = 39,929.53

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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.