Home / 151,742.21-209,404.26-83,759.21

Finding the Fourth Proportional to 151,742.21, 209,404.26 and 83,759.21

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Solution

The fourth proportional to 151,742.21, 209,404.26 and 83,759.21 is: 115,587.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,742.21 : 209,404.26 = 83,759.21 : x
  2. Step 2: Convert to fraction form
    151,742.21/209,404.26 = 83,759.21/x
  3. Step 3: Cross multiply
    151,742.21x = 209,404.26 × 83,759.21
  4. Step 4: Simplify right side
    151,742.21x = 17,539,534,341.21
  5. Step 5: Solve for x
    x = 17,539,534,341.21/151,742.21
  6. Step 6: Final answer
    x = 115,587.71

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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.