Home / 211,164.06-291,411.11-120,518.21

Finding the Fourth Proportional to 211,164.06, 291,411.11 and 120,518.21

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Solution

The fourth proportional to 211,164.06, 291,411.11 and 120,518.21 is: 166,317.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,164.06 : 291,411.11 = 120,518.21 : x
  2. Step 2: Convert to fraction form
    211,164.06/291,411.11 = 120,518.21/x
  3. Step 3: Cross multiply
    211,164.06x = 291,411.11 × 120,518.21
  4. Step 4: Simplify right side
    211,164.06x = 35,120,345,351.31
  5. Step 5: Solve for x
    x = 35,120,345,351.31/211,164.06
  6. Step 6: Final answer
    x = 166,317.82

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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.