Home / 189,346.69-261,321.56-108,774.04

Finding the Fourth Proportional to 189,346.69, 261,321.56 and 108,774.04

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Solution

The fourth proportional to 189,346.69, 261,321.56 and 108,774.04 is: 150,121.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,346.69 : 261,321.56 = 108,774.04 : x
  2. Step 2: Convert to fraction form
    189,346.69/261,321.56 = 108,774.04/x
  3. Step 3: Cross multiply
    189,346.69x = 261,321.56 × 108,774.04
  4. Step 4: Simplify right side
    189,346.69x = 28,425,001,276.43
  5. Step 5: Solve for x
    x = 28,425,001,276.43/189,346.69
  6. Step 6: Final answer
    x = 150,121.46

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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.