Home / 145,504.20-200,793.78-81,842.04

Finding the Fourth Proportional to 145,504.20, 200,793.78 and 81,842.04

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Solution

The fourth proportional to 145,504.20, 200,793.78 and 81,842.04 is: 112,940.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,504.20 : 200,793.78 = 81,842.04 : x
  2. Step 2: Convert to fraction form
    145,504.20/200,793.78 = 81,842.04/x
  3. Step 3: Cross multiply
    145,504.20x = 200,793.78 × 81,842.04
  4. Step 4: Simplify right side
    145,504.20x = 16,433,372,574.51
  5. Step 5: Solve for x
    x = 16,433,372,574.51/145,504.20
  6. Step 6: Final answer
    x = 112,940.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.