Home / 114,997.42-158,769.36-78,759.64

Finding the Fourth Proportional to 114,997.42, 158,769.36 and 78,759.64

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Solution

The fourth proportional to 114,997.42, 158,769.36 and 78,759.64 is: 108,738.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,997.42 : 158,769.36 = 78,759.64 : x
  2. Step 2: Convert to fraction form
    114,997.42/158,769.36 = 78,759.64/x
  3. Step 3: Cross multiply
    114,997.42x = 158,769.36 × 78,759.64
  4. Step 4: Simplify right side
    114,997.42x = 12,504,617,636.63
  5. Step 5: Solve for x
    x = 12,504,617,636.63/114,997.42
  6. Step 6: Final answer
    x = 108,738.25

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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.