Home / 148,679.04-205,175.68-81,609.60

Finding the Fourth Proportional to 148,679.04, 205,175.68 and 81,609.60

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Solution

The fourth proportional to 148,679.04, 205,175.68 and 81,609.60 is: 112,620.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,679.04 : 205,175.68 = 81,609.60 : x
  2. Step 2: Convert to fraction form
    148,679.04/205,175.68 = 81,609.60/x
  3. Step 3: Cross multiply
    148,679.04x = 205,175.68 × 81,609.60
  4. Step 4: Simplify right side
    148,679.04x = 16,744,305,174.53
  5. Step 5: Solve for x
    x = 16,744,305,174.53/148,679.04
  6. Step 6: Final answer
    x = 112,620.48

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1.5x scale

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.