Home / 159,131.57-219,539.40-91,112.19

Finding the Fourth Proportional to 159,131.57, 219,539.40 and 91,112.19

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Solution

The fourth proportional to 159,131.57, 219,539.40 and 91,112.19 is: 125,699.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,131.57 : 219,539.40 = 91,112.19 : x
  2. Step 2: Convert to fraction form
    159,131.57/219,539.40 = 91,112.19/x
  3. Step 3: Cross multiply
    159,131.57x = 219,539.40 × 91,112.19
  4. Step 4: Simplify right side
    159,131.57x = 20,002,715,525.29
  5. Step 5: Solve for x
    x = 20,002,715,525.29/159,131.57
  6. Step 6: Final answer
    x = 125,699.23

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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.