Home / 199,520.28-299,121.84-115,185.06

Finding the Fourth Proportional to 199,520.28, 299,121.84 and 115,185.06

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Solution

The fourth proportional to 199,520.28, 299,121.84 and 115,185.06 is: 172,686.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,520.28 : 299,121.84 = 115,185.06 : x
  2. Step 2: Convert to fraction form
    199,520.28/299,121.84 = 115,185.06/x
  3. Step 3: Cross multiply
    199,520.28x = 299,121.84 × 115,185.06
  4. Step 4: Simplify right side
    199,520.28x = 34,454,367,087.71
  5. Step 5: Solve for x
    x = 34,454,367,087.71/199,520.28
  6. Step 6: Final answer
    x = 172,686.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.