Home / 211,187.32-291,439.04-115,695.88

Finding the Fourth Proportional to 211,187.32, 291,439.04 and 115,695.88

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Solution

The fourth proportional to 211,187.32, 291,439.04 and 115,695.88 is: 159,660.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,187.32 : 291,439.04 = 115,695.88 : x
  2. Step 2: Convert to fraction form
    211,187.32/291,439.04 = 115,695.88/x
  3. Step 3: Cross multiply
    211,187.32x = 291,439.04 × 115,695.88
  4. Step 4: Simplify right side
    211,187.32x = 33,718,296,199.16
  5. Step 5: Solve for x
    x = 33,718,296,199.16/211,187.32
  6. Step 6: Final answer
    x = 159,660.61

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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.