Home / 115,046.97-158,786.83-69,749.65

Finding the Fourth Proportional to 115,046.97, 158,786.83 and 69,749.65

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Solution

The fourth proportional to 115,046.97, 158,786.83 and 69,749.65 is: 96,267.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,046.97 : 158,786.83 = 69,749.65 : x
  2. Step 2: Convert to fraction form
    115,046.97/158,786.83 = 69,749.65/x
  3. Step 3: Cross multiply
    115,046.97x = 158,786.83 × 69,749.65
  4. Step 4: Simplify right side
    115,046.97x = 11,075,325,817.11
  5. Step 5: Solve for x
    x = 11,075,325,817.11/115,046.97
  6. Step 6: Final answer
    x = 96,267.86

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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.