Home / 100,812.67-151,219.42-40,842.31

Finding the Fourth Proportional to 100,812.67, 151,219.42 and 40,842.31

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Solution

The fourth proportional to 100,812.67, 151,219.42 and 40,842.31 is: 61,263.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,812.67 : 151,219.42 = 40,842.31 : x
  2. Step 2: Convert to fraction form
    100,812.67/151,219.42 = 40,842.31/x
  3. Step 3: Cross multiply
    100,812.67x = 151,219.42 × 40,842.31
  4. Step 4: Simplify right side
    100,812.67x = 6,176,150,153.72
  5. Step 5: Solve for x
    x = 6,176,150,153.72/100,812.67
  6. Step 6: Final answer
    x = 61,263.63

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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.