Home / 120,109.96-165,734.73-69,103.24

Finding the Fourth Proportional to 120,109.96, 165,734.73 and 69,103.24

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Solution

The fourth proportional to 120,109.96, 165,734.73 and 69,103.24 is: 95,352.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,109.96 : 165,734.73 = 69,103.24 : x
  2. Step 2: Convert to fraction form
    120,109.96/165,734.73 = 69,103.24/x
  3. Step 3: Cross multiply
    120,109.96x = 165,734.73 × 69,103.24
  4. Step 4: Simplify right side
    120,109.96x = 11,452,806,823.53
  5. Step 5: Solve for x
    x = 11,452,806,823.53/120,109.96
  6. Step 6: Final answer
    x = 95,352.68

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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.