Home / 151,021.22-208,409.43-83,039.33

Finding the Fourth Proportional to 151,021.22, 208,409.43 and 83,039.33

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Solution

The fourth proportional to 151,021.22, 208,409.43 and 83,039.33 is: 114,594.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,021.22 : 208,409.43 = 83,039.33 : x
  2. Step 2: Convert to fraction form
    151,021.22/208,409.43 = 83,039.33/x
  3. Step 3: Cross multiply
    151,021.22x = 208,409.43 × 83,039.33
  4. Step 4: Simplify right side
    151,021.22x = 17,306,179,432.88
  5. Step 5: Solve for x
    x = 17,306,179,432.88/151,021.22
  6. Step 6: Final answer
    x = 114,594.36

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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.