Home / 207,485.72-286,335.17-115,611.21

Finding the Fourth Proportional to 207,485.72, 286,335.17 and 115,611.21

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Solution

The fourth proportional to 207,485.72, 286,335.17 and 115,611.21 is: 159,546.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,485.72 : 286,335.17 = 115,611.21 : x
  2. Step 2: Convert to fraction form
    207,485.72/286,335.17 = 115,611.21/x
  3. Step 3: Cross multiply
    207,485.72x = 286,335.17 × 115,611.21
  4. Step 4: Simplify right side
    207,485.72x = 33,103,554,891.20
  5. Step 5: Solve for x
    x = 33,103,554,891.20/207,485.72
  6. Step 6: Final answer
    x = 159,546.19

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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.