Home / 211,080.83-291,291.05-115,586.69

Finding the Fourth Proportional to 211,080.83, 291,291.05 and 115,586.69

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Solution

The fourth proportional to 211,080.83, 291,291.05 and 115,586.69 is: 159,509.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,080.83 : 291,291.05 = 115,586.69 : x
  2. Step 2: Convert to fraction form
    211,080.83/291,291.05 = 115,586.69/x
  3. Step 3: Cross multiply
    211,080.83x = 291,291.05 × 115,586.69
  4. Step 4: Simplify right side
    211,080.83x = 33,669,367,128.64
  5. Step 5: Solve for x
    x = 33,669,367,128.64/211,080.83
  6. Step 6: Final answer
    x = 159,509.36

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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.