Home / 211,182.80-291,431.40-115,695.44

Finding the Fourth Proportional to 211,182.80, 291,431.40 and 115,695.44

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Solution

The fourth proportional to 211,182.80, 291,431.40 and 115,695.44 is: 159,659.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,182.80 : 291,431.40 = 115,695.44 : x
  2. Step 2: Convert to fraction form
    211,182.80/291,431.40 = 115,695.44/x
  3. Step 3: Cross multiply
    211,182.80x = 291,431.40 × 115,695.44
  4. Step 4: Simplify right side
    211,182.80x = 33,717,284,052.82
  5. Step 5: Solve for x
    x = 33,717,284,052.82/211,182.80
  6. Step 6: Final answer
    x = 159,659.23

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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.