Home / 211,012.06-291,203.20-115,527.64

Finding the Fourth Proportional to 211,012.06, 291,203.20 and 115,527.64

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Solution

The fourth proportional to 211,012.06, 291,203.20 and 115,527.64 is: 159,431.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,012.06 : 291,203.20 = 115,527.64 : x
  2. Step 2: Convert to fraction form
    211,012.06/291,203.20 = 115,527.64/x
  3. Step 3: Cross multiply
    211,012.06x = 291,203.20 × 115,527.64
  4. Step 4: Simplify right side
    211,012.06x = 33,642,018,456.45
  5. Step 5: Solve for x
    x = 33,642,018,456.45/211,012.06
  6. Step 6: Final answer
    x = 159,431.73

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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.