Home / 115,485.37-159,479.86-109,195.69

Finding the Fourth Proportional to 115,485.37, 159,479.86 and 109,195.69

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Solution

The fourth proportional to 115,485.37, 159,479.86 and 109,195.69 is: 150,794.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,485.37 : 159,479.86 = 109,195.69 : x
  2. Step 2: Convert to fraction form
    115,485.37/159,479.86 = 109,195.69/x
  3. Step 3: Cross multiply
    115,485.37x = 159,479.86 × 109,195.69
  4. Step 4: Simplify right side
    115,485.37x = 17,414,513,353.80
  5. Step 5: Solve for x
    x = 17,414,513,353.80/115,485.37
  6. Step 6: Final answer
    x = 150,794.11

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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.