Home / 135,406.08-203,155.20-69,696

Finding the Fourth Proportional to 135,406.08, 203,155.20 and 69,696

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Solution

The fourth proportional to 135,406.08, 203,155.20 and 69,696 is: 104,567.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,406.08 : 203,155.20 = 69,696 : x
  2. Step 2: Convert to fraction form
    135,406.08/203,155.20 = 69,696/x
  3. Step 3: Cross multiply
    135,406.08x = 203,155.20 × 69,696
  4. Step 4: Simplify right side
    135,406.08x = 14,159,104,819.20
  5. Step 5: Solve for x
    x = 14,159,104,819.20/135,406.08
  6. Step 6: Final answer
    x = 104,567.72

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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.