Home / 158,759.87-219,091.46-87,146.56

Finding the Fourth Proportional to 158,759.87, 219,091.46 and 87,146.56

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Solution

The fourth proportional to 158,759.87, 219,091.46 and 87,146.56 is: 120,263.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,759.87 : 219,091.46 = 87,146.56 : x
  2. Step 2: Convert to fraction form
    158,759.87/219,091.46 = 87,146.56/x
  3. Step 3: Cross multiply
    158,759.87x = 219,091.46 × 87,146.56
  4. Step 4: Simplify right side
    158,759.87x = 19,093,066,080.92
  5. Step 5: Solve for x
    x = 19,093,066,080.92/158,759.87
  6. Step 6: Final answer
    x = 120,263.80

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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.