Home / 129,609.12-177,694.08-127,247.16

Finding the Fourth Proportional to 129,609.12, 177,694.08 and 127,247.16

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Solution

The fourth proportional to 129,609.12, 177,694.08 and 127,247.16 is: 174,455.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,609.12 : 177,694.08 = 127,247.16 : x
  2. Step 2: Convert to fraction form
    129,609.12/177,694.08 = 127,247.16/x
  3. Step 3: Cross multiply
    129,609.12x = 177,694.08 × 127,247.16
  4. Step 4: Simplify right side
    129,609.12x = 22,611,067,028.81
  5. Step 5: Solve for x
    x = 22,611,067,028.81/129,609.12
  6. Step 6: Final answer
    x = 174,455.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.