Home / 100,930.96-151,420.38-30,805.84

Finding the Fourth Proportional to 100,930.96, 151,420.38 and 30,805.84

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Solution

The fourth proportional to 100,930.96, 151,420.38 and 30,805.84 is: 46,216.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,930.96 : 151,420.38 = 30,805.84 : x
  2. Step 2: Convert to fraction form
    100,930.96/151,420.38 = 30,805.84/x
  3. Step 3: Cross multiply
    100,930.96x = 151,420.38 × 30,805.84
  4. Step 4: Simplify right side
    100,930.96x = 4,664,631,999.02
  5. Step 5: Solve for x
    x = 4,664,631,999.02/100,930.96
  6. Step 6: Final answer
    x = 46,216.07

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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.