Home / 135,910.33-203,693.27-76,779.32

Finding the Fourth Proportional to 135,910.33, 203,693.27 and 76,779.32

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Solution

The fourth proportional to 135,910.33, 203,693.27 and 76,779.32 is: 115,071.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,910.33 : 203,693.27 = 76,779.32 : x
  2. Step 2: Convert to fraction form
    135,910.33/203,693.27 = 76,779.32/x
  3. Step 3: Cross multiply
    135,910.33x = 203,693.27 × 76,779.32
  4. Step 4: Simplify right side
    135,910.33x = 15,639,429,356.81
  5. Step 5: Solve for x
    x = 15,639,429,356.81/135,910.33
  6. Step 6: Final answer
    x = 115,071.68

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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.