Home / 151,742.12-209,404.12-83,759.12

Finding the Fourth Proportional to 151,742.12, 209,404.12 and 83,759.12

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Solution

The fourth proportional to 151,742.12, 209,404.12 and 83,759.12 is: 115,587.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,742.12 : 209,404.12 = 83,759.12 : x
  2. Step 2: Convert to fraction form
    151,742.12/209,404.12 = 83,759.12/x
  3. Step 3: Cross multiply
    151,742.12x = 209,404.12 × 83,759.12
  4. Step 4: Simplify right side
    151,742.12x = 17,539,504,815.57
  5. Step 5: Solve for x
    x = 17,539,504,815.57/151,742.12
  6. Step 6: Final answer
    x = 115,587.58

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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.