Home / 100,958.78-151,432.70-30,832.62

Finding the Fourth Proportional to 100,958.78, 151,432.70 and 30,832.62

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Solution

The fourth proportional to 100,958.78, 151,432.70 and 30,832.62 is: 46,247.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,958.78 : 151,432.70 = 30,832.62 : x
  2. Step 2: Convert to fraction form
    100,958.78/151,432.70 = 30,832.62/x
  3. Step 3: Cross multiply
    100,958.78x = 151,432.70 × 30,832.62
  4. Step 4: Simplify right side
    100,958.78x = 4,669,066,894.67
  5. Step 5: Solve for x
    x = 4,669,066,894.67/100,958.78
  6. Step 6: Final answer
    x = 46,247.26

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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.